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. The SI unit of heat + energy is:

Question 1 of 15

2. In exothermic reactions,  ΔH is:

Question 2 of 15

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

Question 3 of 15

4. A state function represents:

Question 4 of 15

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

Question 5 of 15

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

Question 6 of 15

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

Question 7 of 15

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

Question 8 of 15

9. What si not a state function?

Question 9 of 15

10. Entropy is a measure of ______ system.

Question 10 of 15

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

Question 11 of 15

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

Question 12 of 15

13. Evaporation of water is a:

Question 13 of 15

14. Al the naturally processes proceed with the:

Question 14 of 15

15. Entropy of universe tends towards:

Question 15 of 15


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  1. Entropy of universe tends to be maximum.
    Exothermic reaction has -ve sign for H

  2. Yes the mcq is wrong

  3. 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.

  4. i think increase

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