Home > Chemistry > Quizzes > Basic Chemistry Practice Test: Thermochemistry
Basic Chemistry Practice Test: Thermochemistry
Fast practice, instant feedback. Timer auto-submits when time’s up.
Avg score: 50% • Most missed: “For which one of the following reactions is the value of .H°rxn equal to .H°f fo…”
Thermochemistry is the study of heat energy associated with chemical reactions and phase changes.  Thermochemistry involves the following concepts: Heat of reaction: Also known as the enthalpy of reaction, this looks at the overall heat energy that occurs in a reaction. Enthalpy: The heat content of a system. Hess's law: A principle in general chemistry that states that the change in enthalpy for a reaction is independent of path and depends only on initial and final states. Closed system: A thermodynamic system that exchanges neither energy nor matter with its surroundings. A covered... Show more
Basic Chemistry Practice Test: Thermochemistry
Time left 00:00
25 Questions

1. The .E of a system that releases 12.4 J of heat and does 4.2 J of work on the surroundings is __________ J.
2. At what velocity (m/s) must a 20.0 g object be moving in order to possess a kinetic energy of 1.00 J?
3. The specific heat capacity of liquid mercury is 0.14 J/g-K. How many joules of heat are needed to raise the temperature of 5.00 g of mercury from 15.0°C to 36.5°C?
4. The temperature of a 15-g sample of lead metal increases from 22°C to 37°C upon the addition of 29.0 J of heat. The specific heat capacity of the lead is __________ J/g-K.
5. The value of ΔH° for the reaction below is +128.1 kJ:
CH3OH (l) . CO (g) + 2H2 (g)
How many kJ of heat are consumed when 5.10 g of H2 (g) is formed as shown in the equation?
6. The change in the internal energy of a system that absorbs 2,500 J of heat and that does 7,655 J of work on thesurroundings is __________ J.
7. Calculate the kinetic energy in joules of an 80.0 g bullet traveling at 300.0 m/s.
8. A 5-ounce cup of raspberry yogurt contains 6.0 g of protein, 2.0 g of fat, and 26.9 g of carbohydrate. The fuel values for protein, fat, and carbohydrate are 17, 38, and 17 kJ/g, respectively. The fuel value of this cup of yogurt is__________ kJ.
9. The value of ΔH° for the reaction below is -482 kJ. Calculate the heat (kJ) released to the surroundings when 12.0 g of CO (g) reacts completely.
2CO (g) + O2 (g) . 2CO2 (g)
10. Calculate the kinetic energy in joules of a 150 lb jogger (68.1 kg) traveling at 12.0 mile/hr (5.36 m/s).
11. The energy released by combustion of 1 g of a substance is called the __________ of the substance.
12. The value of .E for a system that performs 213 kJ of work on its surroundings and loses 79 kJ of heat is__________ kJ.
13. The value of ΔH° for the reaction below is -1107 kJ:
2Ba (s) + O2 (g) . 2BaO (s)
How many kJ of heat are released when 5.75 g of Ba (s) reacts completely with oxygen to form BaO (s) ?
14. For which one of the following reactions is .H°rxn equal to the heat of formation of the product?
15. The combustion of titanium with oxygen produces titanium dioxide:
Ti (s) + O2 (g) . TiO2 (s). When 0.721 g of titanium is combusted in a bomb calorimeter, the temperature of the calorimeter increases from 25.00°C to 53.80°. In a separate experiment, the heat capacity of the calorimeter is measured to be 9.84 kJ/K. The heat of reaction for the combustion of a mole of Ti in this calorimeter is __________ kJ/mol.
16. The molar heat capacity of a compound with the formula C2H6SO is 88.0 J/mol-K. The specific heat of this substance is __________ J/g-K.
17. Units of energy include newtons, joules, and calories.
18. The specific heat capacity of methane gas is 2.20 J/g-K. How many joules of heat are needed to raise the temperature of 5.00 g of methane from 36.0°C to 75.0°C?
19. Of the following, which one is a state function?
20. One joule equals 1 kg • m2/s2 .
21. A 25.5-g piece of cheddar cheese contains 37% fat, 28% protein, and 4% carbohydrate. The respective fuel values for protein, fat, and carbohydrate are 17, 38, and 17 kJ/g, respectively. The fuel value for this piece of cheese is __________ kJ.
22. The specific heat capacity of liquid water is 4.18 J/g-K. How many joules of heat are needed to raise the temperature of 5.00 g of water from 25.1°C to 65.3°C?
23. For which one of the following reactions is the value of .H°rxn equal to .H°f for the product?
24. Which one of the following is an exothermic process?
25. Calculate the value of .E in joules for a system that loses 50 J of heat and has 150 J of work performed on it bythe surroundings.

⚡ Recently practiced quizzes in this topic
Live quiz activity
Basic Chemistry Practice Test: Chemistry of the Nonmetals Chemistry Certification Basic Chemistry Basic Chemistry Practice Test: Aqueous Reactions and Solution Stoichiometry Basic Chemistry Practice Test: Organic and Biological Chemistry Basic Chemistry Practice Test: Matter and Measurement Basics Basic Chemistry Practice Test: Stoichiometry & Calculations with Equations Basic Chemistry Practice Test: Basic Concepts of Chemical Bonding Basic Chemistry Practice Test: Modern Materials Basic Chemistry Practice Test: Intermolecular Forces, Liquids, and Solids
 
❤ If you liked Fatskills, consider supporting us by checking out The Life Manuals You Never Got.

🌈  Our mission is to help improve your scores in any subject and exam withonline quizzes, practice tests, study guides, & advice for students. Since 2018.
About | Explore | User Guide | Topics | Subjects | Doubt Solver | Career Aptitude Test | Answers | Free Tools | OSHA Basics Quiz | What Should We Know?
Privacy | Terms |
Without work one finishes nothing. - Ralph Waldo Emerson
© 2026 Fatskills.com

All trademarks, logos and brand names are the property of their respective owners. All company, product and service names used in this website are for identification purposes only. Use of these names, trademarks and brands does not imply endorsement.