Ch. 17 - Chemical ThermodynamicsWorksheetSee 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
Conservation of Energy

Concept #1: First Law of Thermodynamics Intro

Concept #2: First Law of Thermodynamics

Additional Problems
Which is a state function (mark all that apply)? a) flame heating b) enthalpy c) entropy d) electrical work e) none of these
What is the first law of thermodynamics? (circle one) The energy of the universe is conserved. The speed of a spontaneous process is determined by the activation energy. Mass and energy of the universe is conserved.
Which of the following statements is TRUE? A) Entropy is not a state function. B) Endothermic processes are never spontaneous. C) Endothermic processes decrease the entropy of the surroundings, at constant T and P. D) Exothermic processes are always spontaneous. E) None of the above are true.
Which statement would be the best interpretation of the First Law of Thermodynamics? 1. The total amount of energy in the universe is increasing. 2. The total amount of energy in the universe is constant.  3. The total amount of matter in the universe is constant. 4. The total amount of entropy in the universe is increasing.
Which of the following is true of a general thermodynamic state function? 1. The change of the value of a state function is independent of the path of a process. 2. The value of a state function does NOT change with a change in temperature of a process. 3. The change in the value of a state function is always negative for a spontaneous reaction. 4. The value of the state function remains constant. 5. The change in the value of the state function is always positive for endothermic processes.
Which statement(s) is/are true regarding the first law of thermodynamics? I) Energy can be converted from one form to another, but the total amount of energy is always conserved. II) The first law of thermodynamics defines entropy. III) The internal energy of the system and surroundings could both increase.   A) I only B) III only C) both II and III D) both I and III E) all are true
Which of the following statements is TRUE?   a. State functions are not dependent on the path taken to reach a particular state. b. The change in the internal energy of a system can be determined by using constant volume calorimetry. c. Energy is neither created nor destroyed. d. The enthalpy of a reaction can be determined by using constant pressure calorimetry. e. All of the above statements are true. 
The First Law of Thermodynamics tells us that:  a. energy must be transferred during a chemical reaction. b. enthalpies of formation for elements must be zero. c. all collisions of gas molecules are elastic. d. if something loses energy, something else must gain that same amount of energy. e. heat always flows from a hot body to a cold body.
The ____ law of thermodynamic states the energy is conserved in chemical processes. Second First Third Zero None of the above
When most elastomeric polymers (e.g., a rubber band) are stretched, the molecules become more ordered, as illustrated here: Suppose you stretch a rubber band.If the rubber band were stretched isothermally, would heat need to be absorbed or emitted to maintain constant temperature?
What is the first law of thermodynamics and how does it relate to energy use?
What is a perpetual motion machine? Is such a machine possible given the laws of thermodynamics?
State the law of conservation of energy.
State the first law of thermodynamics.
Why volume is a state function?
Imagine that you are climbing a mountain. (a) Is the distance you travel to the top a state function? Why or why not?
Which of the following is not a state function?a. Internal Energyb. Free Energyc. Enthalpyd. Entropye. Heat
(a) State the first law of thermodynamics.
The law of ________ states that energy can be neither created nor destroyed.A) kinetic energyB) potential energyC) the conservation of energyD) thermochemistry
(a) What is meant by the term state function?
Which of the following is a statement of the first law of thermodynamics?A) Ek = 1/2mv2B) A negative ΔH corresponds to an exothermic process.C) ΔE = Efinal - EinitialD) Energy lost by the system must be gained by the surroundings.E) 1 cal = 4.184 J (exactly) 
In a thermodynamic study a scientist focuses on the properties of a solution in an apparatus as illustrated. A solution is continuously flowing into the apparatus at the top and out at the bottom, such that the amount of solution in the apparatus is constant with time.Is the solution in the apparatus a closed system, open system, or isolated system? Explain your choice.
Which of the thermodynamic quantities T, E, q, w, and S are state functions?
How many reversible paths are there between two states of a system?
You may want to reference (Pages 167 - 172) Section 5.2 while completing this problem.Indicate which of the following is independent of the path by which a change occurs.(a) the change in potential energy when a book is transferred from table to shelf(b) the heat evolved when a cube of sugar is oxidized to CO2(g) and H2O(g)(c) the work accomplished in burning a gallon of gasoline.
Classify each of the following as a path function or a state function.i) Workii) Energyiii) Distance travelediv) Enthalpyv) Heat
Select the correct statement of the first law of thermodynamics. a) At a temperature of 0 K the entropy of a pure crystalline solid isb) In a spontaneous process, the entropy of the universe increasesc) Energy is conserved, or, mathematically, delta E = q + w