Ch.11 - Liquids, Solids & Intermolecular ForcesWorksheetSee all chapters
All Chapters
Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch. 17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds

Solution: You just saw that the heat capacity of ice is Cs, ice = 2.09 J/g oC and that the heat of fusion of ice is 6.02 kJ/mol.When a small ice cube at -10oC is put into a cup of water at room temperature, which of the following plays a greater role in cooling the liquid water: the warming of the ice from -10oC to 0oC , or the melting of the ice?

Solution: You just saw that the heat capacity of ice is ​Cs, ice = 2.09 J/g oC and that the heat of fusion of ice is 6.02 kJ/mol.​When a small ice cube at -10oC is put into a cup of water at room temperature, w

Problem

You just saw that the heat capacity of ice is Cs, ice = 2.09 J/g oC and that the heat of fusion of ice is 6.02 kJ/mol.

When a small ice cube at -10oC is put into a cup of water at room temperature, which of the following plays a greater role in cooling the liquid water: the warming of the ice from -10oC to 0oC , or the melting of the ice?

Solution

We have to determine whether the warming of ice from -10 °C to 0 °C results in more cooling or its melting at 0 °C.


The given values are:

Cs, ice = 2.09 J/g•°C

ΔHfusion = 6.02 kJ/mol


To solve this problem, we will calculate the energy that is required to warm 1 mol of ice from -10 °C to 0 °C and compare it with the heat of fusion of ice.

Solution BlurView Complete Written Solution