Chemistry Chemical Energetics Online Quiz Test MCQs

Given on this page is a online quiz on the topic of Chemical Energetics. Being one of the very important subject, questions related to various topics of Chemistry are often part of different written exams and in order to help you in preparing for them in best way possible, the free online quizzes related to its various topics are given on our website

Chemistry Chemical Energetics Online Quiz Test MCQs


1. A substance or a mixture undergoing a physical change is called:

Question 1 of 16

2. In exothermic reactions,  ΔH is:

Question 2 of 16

3. Entropy is a measure of ______ system.

Question 3 of 16

4. A process is solid to be ______ if the temperature remains constant throughout.

Question 4 of 16

5. What do you call the apparatus generally used for measuring heat changes?

Question 5 of 16

6. Which is most stable form of C at 25°C?

Question 6 of 16

7. Thermochemistry is the study of relationship between heat, energy and:

Question 7 of 16

8. Entropy of universe tends towards:

Question 8 of 16

9. A state function represents:

Question 9 of 16

10. The SI unit of heat + energy is:

Question 10 of 16

11. Al the naturally processes proceed with the:

Question 11 of 16

12. A state function represents:

Question 12 of 16

13. Any property which depends upon the state of system is called:

Question 13 of 16

14. Evaporation of water is a:

Question 14 of 16

15. What si not a state function?

Question 15 of 16

16. What is the value of internal of an element of 25°C at atmospheric pressure?

Question 16 of 16


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  1. Enthalpy is negative for exothermic process and state function represents physical state.Entropy tends towards increase and does not remain constant.I hope this will be helpful to the visitors in future

  2. There are some mistakes in these questions . In exothermic reaction , enthalpy is negative and value of Delta H is less than zero ,so heat is released . its sign is negative then. Secondly Entropy is the measure of disorder of system and its increasing gradually (not constant) which will result in heat death after million of years.

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