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Exams & Certifications

Chemical Thermodynamics Quizzes, Questions & Answers

Recent Chemical Thermodynamics Quizzes

IB Chem Sl Energetics / Thermochemistry

Questions: 11 | Attempts: 998 | Last updated: Mar 22, 2025

Sample Question
The dissolving of potassium iodide in water is an endothermic process. Which graph shows the temperature changes that occur when potassium iodide is stirred with water until no further change in temperature is observed?

A

B

C

D

Prepare For The Chemistry Exam Quiz

Questions: 20 | Attempts: 501 | Last updated: Mar 21, 2025

Sample Question
What percentage of acetic acid is legally allowed in vinegar?

2%

6%

5%

10%

Chemistry Ch16&17 Exam

Questions: 90 | Attempts: 300 | Last updated: Mar 20, 2025

Sample Question
For a process, the enthalpy change of a system is 1.25 x 105 J and the entropy change is 300.0 J/K. Calculate the free energy change of the system at 290 K.

9.2x105 J

3.8x104 J

1.03x106 J

1.1x105 J

Endo Vs EXO Reactions Quiz: Test Your Knowledge!

Questions: 10 | Attempts: 6965 | Last updated: Oct 28, 2025

Sample Question
C6H12O6 + 6O2 à 6CO2 + 6H2O ∆H = -2803 kJ

Exothermic

Endothermic

Reaction Represented Chapter 6 Quiz Test

Questions: 5 | Attempts: 695 | Last updated: Mar 21, 2025

Sample Question
4 NH3 (g) + 3 O2 (g) --> 2 N2 (g) + 6 H2O (g)If the standard molar heats of formation of ammonia, NH3 (g), and gaseous water, H2O (g), are -46 kJ/mol and -242 kJ/mol, respectively, what is the value of for the reaction represented above?

-190 kJ/mol

-290 kJ/mol

-580 kJ/mol

-1270 kJ/mol

-1640 kJ/mol

Chemistry Heat and Temperature Quiz

Questions: 10 | Attempts: 4449 | Last updated: Mar 22, 2025

Sample Question
How many joules of heat is required to heat 68.00 grams of aluminum foil from 55.00 °C to 93.00 °C in case aluminum has a specific heat of 0.90 J/g °C?

2326 J

2871 J

3420 J

9058 J

Chemistry Se 11 C

Questions: 6 | Attempts: 232 | Last updated: Mar 18, 2025

Sample Question
Which of the following applies to an exothermic reaction?

Hfinal < Hinitial ∆H < 0

Hfinal < Hinitial ∆H > 0

Hfinal > Hinitial ∆H > 0

Hfinal > Hinitial ∆H < 0

Chemistry Se 11 B

Questions: 6 | Attempts: 211 | Last updated: Mar 20, 2025

Sample Question
During an endothermic reaction, heat content in the surroundings decreases because —

The reaction absorbs heat energy

All reactions need heat energy

Energy is given off by the reaction

Heat energy is destroyed during reactions

Thermochemistry Review

Questions: 16 | Attempts: 5255 | Last updated: Sep 12, 2025

Sample Question
What do we call the heat content of a system

Entropy

Heat

Enthalpy

Temeprature

IB Chemsl Intro To Energetics

Questions: 11 | Attempts: 480 | Last updated: Mar 20, 2025

Sample Question
The dissolving of potassium iodide in water is an endothermic process. Which graph shows the temperature changes that occur when potassium iodide is stirred with water until no further change in temperature is observed?

A

B

C

D

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