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# Heat and Thermodynamics Test Online MCQs

 Test Name Heat and Thermodynamics MCQs Test Subject Physics Test Type MCQs Total Question 25 Total Marks 50 Total Time 25 Mints Test Help For Physics Subject Test Prep. All Admissions Test. All Jobs and recruitment Test prep. Medical Test prep. Engineering Test prep.

Heat and Thermodynamics Multiple Choice Questions Test is available over here for the preparation of all tests such as admission test, medical, engineering test and written test. Attempt Heat and Thermodynamics MCQs Test is given below.

## Physics

1. The first law of thermodynamics is based on the law of conservation of:

Question 1 of 25

2. While measuring thermal conductivity of a liquid, we keep the upper part hot and lower part cold, so that:

Question 2 of 25

3. Which of the following is not the property of both heat and work:

Question 3 of 25

4. When heat is added to a system, which of the following is not possible?

Question 4 of 25

5. Which of the following is the best container for gas during isothermal process?

Question 5 of 25

6. In which of the following process all the three thermodynamic variables, that is pressure, volume and temperature can change?

Question 6 of 25

7. The ideal black body is:

Question 7 of 25

8. Thermal equilibrium implies equality of:

Question 8 of 25

9. A sink, that is a system where heat is rejected is essential for the conversion of heat into work. From which law the above inference follows?

Question 9 of 25

10. If pressure on a gas is increased from P to 2P, then its heat conductivity:

Question 10 of 25

11. The internal energy of a perfect gas is:

Question 11 of 25

12. A process in which the volume remains constant is called:

Question 12 of 25

13. Which type of molecular motion does not contribute towards internal energy?

Question 13 of 25

14. An iron ball is heated. The percentage increase will be the largest in:

Question 14 of 25

15. The maximum energy emitted by a body for a particular wavelength varies directly as:

Question 15 of 25

16. Thermodynamics is concerned with:

Question 16 of 25

17. What is the name of the device used to transfer heat from a subsystem at lower temperature to the surroundings at higher temperature?

Question 17 of 25

18. A sample of perfect gas is compressed isothermally to half its volume. If it is compressed adiabatically to the same volume the final pressure of the gas will be:

Question 18 of 25

19. The phenomenon of black body radiation was explained satisfactorily by:

Question 19 of 25

20. Which of the following states of matter have two specific heats?

Question 20 of 25

21. What is heat?

Question 21 of 25

22. A process In which the heat content of the system remains constant is called:

Question 22 of 25

23. An ideal gas expands freely in a perfectly rigid and insulated cylinder. Which of the following parameters connected with it varies?

Question 23 of 25

24. In a room containing air, heat can go from one place to another by:

Question 24 of 25

25. The temperature determines the direction of net change of:

Question 25 of 25

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