Chemistry Chemistry Practice Problems Solutions Library

Thermal Equilibrium Solutions Library

Access 88 Thermal Equilibrium video and text solutions to help you complete your homework. Need to revisit the concept? Watch our Thermal Equilibrium learn videos.

Browse Solutions

88 solutions

Thermal Equilibrium

Q. A piece of metal is heated, then submerged in cool water, which statement below describes what happens?1. The temperature of the metal will increas...

Solved • Feb 4, 2021

Thermal Equilibrium

Q. A volume of 115 mL of H2O is initially at room temperature (22.00 °C). A chilled steel rod at 2.00 °C is placed in the water. If the final temperat...

Solved • Jul 2, 2020

Thermal Equilibrium

Q. The amount of boiling water required to raise the temperature of 25.0 kg of water in the bath to body temperature is 4.80 kg. In this process, the ...

Solved • Jul 2, 2020

Thermal Equilibrium

Q. How much boiling water would you need to raise the bath to body temperature (about 37 °C)? Assume that no heat is transferred to the surrounding en...

Solved • Jul 2, 2020

Thermal Equilibrium

Q. A new metal alloy is found to have a specific heat capacity of 0.863 J/ (g °C). First, 23 g of the new alloy is heated to 160. °C. Then, it is plac...

Solved • Jul 2, 2020

Thermal Equilibrium

Q. A mass of 31.5 g of an unknown solid initially at 180.0 °C is added to an ideal constant-pressure calorimeter containing 100.0 g of water (Cs, wate...

Solved • Jul 2, 2020

Thermal Equilibrium

Q. A 27.5 g aluminum block is warmed to 65.0°C and plunged into an insulated beaker containing 55.1 g water initially at 22.4°C. The aluminum and the ...

Solved • Jun 25, 2020

Thermal Equilibrium

Q. If 50.0 mL of ethanol (density = 0.789 g/ mL) initially at 7.0 °C is mixed with 50.0 mL of water (density = 1.0 g/ mL) initially at 28.4 °C in an i...

Solved • Jun 25, 2020

Thermal Equilibrium

Q. Suppose 1.25 g of steam at 100°C condenses on an insulted 65.0 g block of iron (heat capacity 0.449 J/g°C) that is initially at 20.0°C The final te...

Solved • Jan 23, 2020

Thermal Equilibrium

Q. Under constant pressure conditions, a 107 g block of metal at 125°C is added to a mixture of 120 g of water and 22 g of ice at 0°C. As a result, th...

Solved • Dec 19, 2019

Thermal Equilibrium

Q. A piece of metal weighing 57.3 g is heated to a temperature of 88.0°C and is then immersed in 155 g of water at a temperature of 21.53°C. After equ...

Solved • Oct 25, 2019

Thermal Equilibrium

Q. A 30.0 mL of pure water at 280. °C is mixed with 50.0 mL of pure water at 330. °C. What is the final temperature of the mixture (density of water =...

Solved • Oct 3, 2019

Thermal Equilibrium

Q. A piece of iron of mass 200 g and temperature 300°C is dropped into 1.00 kg of water of temperature 20°C. Predict the final equilibrium temperature...

Solved • Aug 7, 2019

Thermal Equilibrium

Q. A piece of iron (C = 0.449 J/g°C) and a piece of gold (C = 0.128 J/g°C) have identical masses. If the iron has an initial temperature of 498 K and ...

Solved • Aug 6, 2019

Thermal Equilibrium

Q. Two substances, lead and glass (Pyrex), initially at different temperatures, come into contact and reach thermal equilibrium. The mass of lead is 1...

Solved • Nov 12, 2018

Thermal Equilibrium

Q. A 4.96 g sample of gold, initially at 62.6˚C, is submerged into 55.1 g of ethanol at 20.1˚C in an insulated container. What is the final temperatur...

Solved • Nov 12, 2018

Thermal Equilibrium

Q. A block of copper of unknown mass has an initial temperature of 65.1 oC. The copper is immersed in a beaker containing 95.1 g of water at 22.8 oC. ...

Solved • Nov 12, 2018

Thermal Equilibrium

Q. If 55.0 mL of ethanol (density = 0.789 g/mL) initially at 8.0˚C is mixed with 55.0 mL of water (density = 1.0 g/mL) initially at 28.5˚C in an insul...

Solved • Nov 12, 2018

Thermal Equilibrium

Q. A 2.51 g lead weight, initially at 10.6˚C, is submerged in 7.86 g of water at 52.4˚C in an insulated container. What is the final temperature of bo...

Solved • Nov 12, 2018

Thermal Equilibrium

Q. A copper cube with an edge measuring 1.57 cm and an aluminum cube with an edge measuring 1.66 cm are both heated to 57.6 oC and submerged in 100.0 ...

Solved • Nov 12, 2018

Thermal Equilibrium

Q. Two substances, A and B, of equal mass but at different temperatures come into thermal contact. The specific heat capacity of substance A is twice ...

Solved • Nov 12, 2018

Thermal Equilibrium

Q. We pack two identical coolers for a picnic, placing 24 12-ounce soft drinks and five pounds of ice in each. However, the drinks that we put into co...

Solved • Nov 12, 2018

Thermal Equilibrium

Q. Substances A and B, initially at different temperatures, come in contact with each other and reach thermal equilibrium. The mass of substance A is ...

Solved • Nov 12, 2018

Thermal Equilibrium

Q. Two substances A and B, initially at different temperatures, are thermally isolated from their surroundings and allowed to come into thermal contac...

Solved • Nov 12, 2018

Thermal Equilibrium

Q. A 13.0 g sample of granite initially at 82.0 oC is immersed into 26.0 g of water initially at 23.0 oC. What is the final temperature of both substa...

Solved • Nov 12, 2018

Thermal Equilibrium

Q. The heat of vaporization of water at 373 K is 40.7 kJ/mol. Find ΔH for the evaporation of 451 g of water at this temperature.

Solved • Nov 12, 2018

Thermal Equilibrium

Q. A pure gold ring and pure silver ring have a total mass of 16.0 g. The two rings are heated to 71.1 oC and dropped into a 13.6 mL of water at 21.8 ...

Solved • Nov 12, 2018

Thermal Equilibrium

Q. A pure gold ring and pure silver ring have a total mass of 16.0 g. The two rings are heated to 71.1 oC and dropped into a 13.6 mL of water at 21.8 ...

Solved • Nov 12, 2018

Thermal Equilibrium

Q. A 26.0 -g aluminum block is warmed to 65.5 oC and plunged into an insulated beaker containing 55.3 g water initially at 22.2 oC. The aluminum and t...

Solved • Nov 12, 2018

Thermal Equilibrium

Q. A silver block, initially at 57.6 oC, is submerged into 100.0 g of water at 24.7 oC, in an insulated container. The final temperature of the mixtur...

Solved • Nov 12, 2018

Thermal Equilibrium

Q. A 32.6 g iron rod, initially at 22.3 oC, is submerged into an unknown mass of water at 63.3 oC, in an insulated container. The final temperature of...

Solved • Nov 12, 2018

Thermal Equilibrium

Q. A 31.5 g wafer of pure gold initially at 69.7 oC is submerged into 63.6 g of water at 27.2 oC in an insulated container.What is the final temperatu...

Solved • Nov 12, 2018

Thermal Equilibrium

Q. Two substances, A and B, initially at different temperatures, come into contact and reach thermal equilibrium. The mass of substance A is 6.23 g an...

Solved • Nov 12, 2018

Thermal Equilibrium

Q. A 2.56 g sample of a substance suspected of being pure gold is warmed to 72.4 oC and submerged into 15.6 g of water initially at 24.6 oC. The final...

Solved • Nov 12, 2018

Thermal Equilibrium

Q. A 2.56 g sample of a substance suspected of being pure gold is warmed to 72.4 oC and submerged into 15.6 g of water initially at 24.6 oC. The final...

Solved • Nov 12, 2018

Thermal Equilibrium

Q. If two objects, A and B, of different temperature come into direct contact, what is the relationship between the heat lost by one object and the he...

Solved • Nov 12, 2018

Thermal Equilibrium

Q. If two objects, A and B, of different temperature come into direct contact, what is the relationship between the heat lost by one object and the he...

Solved • Nov 12, 2018

Thermal Equilibrium

Q. A coffee-cup calorimeter contains 150.0 g of water at 25.2 oC . A 123.0-g block of copper metal is heated to 100.4 oC by putting it in a beaker of ...

Solved • Oct 31, 2018

Thermal Equilibrium

Q. A 5.00-g sample of aluminum pellets (specific heat capacity = 0.89 J/°C ? g) and a 10.00-g sample of iron pellets (specific heat capacity = 0.45 J/...

Solved • Oct 17, 2018

Thermal Equilibrium

Q. A 30.0-g sample of water at 280. K is mixed with 50.0 g water at 330. K. Calculate the final temperature of the mixture assuming no heat loss to th...

Solved • Oct 17, 2018

Thermal Equilibrium

Q. A 110.-g sample of copper (specific heat capacity = 0.20 J/°C•g) is heated to 82.4°C and then placed in a container of water at 22.3°C. The final t...

Solved • Oct 17, 2018

Thermal Equilibrium

Q. A 150.0-g sample of a metal at 75.0°C is added to 150.0 g H2O at 15.0°C. The temperature of the water rises to 18.3°C. Calculate the specific heat ...

Solved • Oct 17, 2018

Thermal Equilibrium

Q. A 70.0 g piece of metal at 80.0°C is placed in 100 g of water at 22.0°C contained in a calorimeter like that shown in Figure 5.12. The metal and wa...

Solved • Oct 16, 2018

Thermal Equilibrium

Q. A 45 g aluminum spoon (specific heat 0.88 J/g°C) at 24°C is placed in 180 mL (180 g) of coffee at 85°C and the temperature of the two become equal....

Solved • Oct 16, 2018

Thermal Equilibrium

Q. How many milliliters of water at 23°C with a density of 1.00 g/mL must be mixed with 180 mL (about 6 oz) of coffee at 95°C so that the resulting co...

Solved • Oct 16, 2018

Thermal Equilibrium

Q. When 155 mL of water at 26°C is mixed with 75 mL of water at 85°C, what is the final temperature? (Assume that no heat is released to the surroundi...

Solved • Oct 15, 2018

Thermal Equilibrium

Q. One piece of copper jewelry at 105°C has twice the mass of another piece at 45°C. Both are placed in a calorimeter of negligible heat capacity. Wha...

Solved • Oct 15, 2018

Thermal Equilibrium

Q. A 49.3-g piece of metal is heated to 288 °C and dropped into 100.0 g of water at 12.0 °C. The metal and water come to the same temperature of 24.0 ...

Solved • Sep 17, 2018

Thermal Equilibrium

Q. Suppose that 1.14 g of rubbing alcohol (C6H8O) evaporates from a 70.0 g aluminum block. Part AIf the aluminum block is initially at 25°C, what is t...

Solved • Aug 30, 2018

Thermal Equilibrium

Q. Four ice cubes at exactly 0°C with a total mass of 55.0 g are combined with 120 g of water at 85°C in an insulated container. (ΔHfun° = 6.02 kJ/mol...

Solved • Aug 30, 2018

Thermal Equilibrium

Q. A 26.6 g sample of Au metal (c = 0.13 J/g°C) is heated to 88.0°C and then placed into a beaker containing 173 g of 13.4 °C water (c = 4.184 J/g°C)....

Solved • Aug 28, 2018

Thermal Equilibrium

Q. If you combine 350.0 mL of water at 25.00°C and 110.0 mL of water at 95.00°C, what is the final temperature of the mixture? Use 1.00 g/mL as the de...

Solved • Aug 21, 2018

Thermal Equilibrium

Q. If you combine 370.0 mL of water at 25.00 ° C and 110.0 mL of water at 95.00 °C. what is the final temperature of the mixture? Use 1.00 g/mL as the...

Solved • Aug 7, 2018

Thermal Equilibrium

Q. A 2.97 g lead weight, initially at 10.7 °C is submerged in 7.72 g of water at 52.9 °C in an insulated container.What is the final temperature of bo...

Solved • Aug 1, 2018

Thermal Equilibrium

Q. Enter your answer in the provided box.A sheet of gold weighing 8.2 g and at a temperature of 17.6 °C is placed flat on a sheet of iron weighing 18....

Solved • Aug 1, 2018

Thermal Equilibrium

Q. Dry ice is solid carbon dioxide. Instead of melting, solid carbon dioxide sublimes according to the following equation: CO2 (s) → CO2 (g). When dry...

Solved • Jul 30, 2018

Thermal Equilibrium

Q. A 285 g piece of granite, heated to 6.10 x 102 °C in a campfire, is dropped into 1.30 L water (d = 1.00 g/mL) at 25.0 °C. The molar heat capacity o...

Solved • Jul 30, 2018

Thermal Equilibrium

Q. Exactly 10.3 mL of water at 31.0 °C are added to a hot iron skillet. All of the water is converted into steam at 100 °C. The mass of the pan is 1.1...

Solved • Jul 30, 2018

Thermal Equilibrium

Q. A 29.75 g piece of iron and a 23.40 g piece of gold at 100.0 °C were dropped into 510.0 mL of water at 26.70 °C. The molar heat capacities of iron ...

Solved • Jul 30, 2018

Thermal Equilibrium

Q. An insulated container is used to hold 43.40 g of water at 35.80 °C. A sample of copper weighing 14.10 g is placed in a dry test tube and heated fo...

Solved • Jul 30, 2018

Thermal Equilibrium

Q. A hot lump of 106.2 g of an unknown substance initially at 153.2°C is placed in 35.0 mL of water initially at 25.0°C and allowed to reach thermal e...

Solved • Jul 24, 2018

Thermal Equilibrium

Q. Two substances, A and B, initially at different temperature, come into contact and reach thermal equilibrium. The mass of substance A is 6.43 g and...

Solved • Jul 24, 2018

Thermal Equilibrium

Q. A silver block, initially at 56.1°C is submerged into 100.0 g of water at 24.2°C, in an insulated container. The final temperature of the mixture u...

Solved • Jul 24, 2018

Thermal Equilibrium

Q. If you combine 280.0 mL of water at 25.00°C and 120.0 mL of water at 95.00°C, what is the final temperature of the mixture? Use 1.00 g/mL as the de...

Solved • Jul 9, 2018

Thermal Equilibrium

Q. The heat capacity of an object indicates how much energy that object can absorb for a given increase in that objects temperature. In a system in wh...

Solved • Jun 25, 2018

Thermal Equilibrium

Q. The following equation is the balanced combustion reaction for C6H6: 2C6H6(l) + 15O2(g) → 12CO2(g) + 6H2O(l) + 6542 kJIf 8.800 g of C6H6 is burned ...

Solved • May 29, 2018

Thermal Equilibrium

Q. A 428 g iron weight is added to 425 ml of water in a calorimeter at 22.6. The final temperature of the water was measured as 43.8. What was the ini...

Solved • May 21, 2018

Thermal Equilibrium

Q. The heat capacity of an object indicates how much energy that object can absorb for a given increase in that Use the following values: object's tem...

Solved • May 21, 2018

Thermal Equilibrium

Q. Enter your answer in the provided box. A 595-g piece of copper tubing is heated to 89.5 C and placed in an insulated vessel containing 159 g of wat...

Solved • May 20, 2018

Thermal Equilibrium

Q. A 31.5 g water of pure gold initially at 69.3 degree C is submerged into 63.9 g of water at 27.6 degree C in an insulated container. What is the fi...

Solved • May 12, 2018

Thermal Equilibrium

Q. A volume of 110 mL of H2O is initially at room temperature (22.00°C) A chilled steel rod at 2.00°C is placed n the water. If the final temperature ...

Solved • May 12, 2018

Thermal Equilibrium

Q. A 2.90 g lead weight, initially at 11.1 ºC, is submerged in 7.64 g of water at 51.8 ºC in an insulated container. What is the final temperature of ...

Solved • May 12, 2018

Thermal Equilibrium

Q. A 54.0 g block of an unknown metal is heated in a hot water bath to 100.0°C. When the block is placed in an insulated vessel containing 130.0 g of ...

Solved • Apr 6, 2018

Thermal Equilibrium

Q. A sample of steam with a mass of 0.510 g and at a temperature of 100°C condenses into an insulated container holding 4.50 g of water at 2.0°C.( ΔH°...

Solved • Mar 22, 2018

Thermal Equilibrium

Q. If you have 340.0 mL of water at 25.00 °C and add 120.0 mL of water at 95.00 °C, what is the final temperature of the mixture? Use 1.00 g/mL as the...

Solved • Dec 19, 2017

Thermal Equilibrium

Q. A 2.78g lead weight, initially at 11.0°C, is submerged in 7.66g of water at 52.3°C in an insulated container. What is the final temperature of both...

Solved • Sep 26, 2017

Thermal Equilibrium

Q. Suppose a 50.0 g block of silver (specific heat = 0.2350 J/g.°C.) at 100°C is placed in contact with a 50.0 g block of iron (specific heat = 0.4494...

Solved • Aug 24, 2017

Thermal Equilibrium

Q. Determine the final temperature when a 25.0 g piece of iron at 85.0°C is placed into 75.0 g of water at 20.0°C. The heat capacity of the iron is 0....

Solved • Jul 3, 2017

Thermal Equilibrium

Q. Suppose a 50.0 g block of silver at 100°C is placed in contact with a 50.0 g block of iron at 0°C, and the two blocks are insulated from the rest o...

Solved • Oct 4, 2016

Thermal Equilibrium

Q. A 19.78 g piece of nickel (specific heat of nickel = 0.444 J/g  oC) was heated to 103.5 oC and then plunged into a beaker containing 87.9 grams of ...

Solved • Aug 24, 2016

Thermal Equilibrium

Q. A student constructs a "coffee cup" calorimeter that contains 83.6 grams of water, at 19.7°C, in a double cup set up with a thermometer and a cork ...

Solved • Aug 24, 2016

Thermal Equilibrium

Q. Two solids of equal mass, labeled X and Y, are placed in contact with each other. Solid X  has an initial temperature of 100°C and  Solid Y has an ...

Solved • Aug 8, 2016

Thermal Equilibrium

Q. When a 45.0 g sample of an alloy at 100.0 °C is dropped into 100.0 g of water at 25.0 °C, the final temperature is 37.0 °C. What is the specific he...

Solved • May 9, 2016

Thermal Equilibrium

Q. Adding water to a steel pan on a flame slows the rise in temerature of the pan, which of the following concepts does this represent? A. Heat capac...

Solved • Apr 5, 2016

Thermal Equilibrium

Q. When a fresh breath of air is drawn into the lungs, it is heated by your body. Let’s assume it reaches thermal equilibrium with your body temperatu...

Solved • Mar 21, 2016

Thermal Equilibrium

Q. A 55.0-g piece of metal is heated in boiling water to 99.8 °C and then dropped into cool water in an insulated beaker containing 225 mL of water wi...

Solved • Feb 12, 2016

Thermal Equilibrium

Q. A piece of iron (mass = 100.0 g) at 398 K is placed in a Styrofoam coffee cup calorimeter containing 25.0 mL of water 298 K. Assuming that no heat ...

Solved • Feb 5, 2016

Thermal Equilibrium

Q. A bar of hot metal is placed in water in an insulated container and the two are allowed to reach thermal equilibrium. When 1.0 kg of metal at 100°C...

Solved • Feb 4, 2016