MCQ Quiz on Class 11 Physics Chapter 12 Thermodynamics with Answers

We have compiled the MCQ Questions for Class 11 Physics Chapter 12 Thermodynamics with Answers Pdf free download covering the entire syllabus for JEE/NEET and Boards. Practice MCQ Questions for Class 11 Physics with Answers on a daily basis and score well in exams. Refer to the Thermodynamics Class 11 MCQs Quiz Questions with Answers here along with a detailed explanation.

Thermodynamics Class 11 MCQs Questions with Answers

MCQ Questions for Class 11 Physics Chapter 12 Thermodynamics with Answers

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1. For a diatomic gas change in internal energy for a unit change in temperature for constant pressure and constant volume is U1 and U2 respectively. What is the ratio of U1 and U2?

 
 
 
 

2. Which of the following statements is correct for any thermodynamic system?

 
 
 
 

3. Which of the following parameters dose not characterize the thermodynamic state of matter?

 
 
 
 

4. The translational kinetic energy of gas molecules at temperature T for one mole of a gas is

 
 
 
 

5. In an isothermal process, the internal energy of the system

 
 
 
 

6. During an adiabatic process, the pressure of a gas is found to be proportional to the cube of its absolute temperature. The ratio Cp/Cv for the gas is

 
 
 
 

7. The temperatures of inside and outside of a refrigerator are 273 K and 303 K respectively. Assuming, that the refrigerator cycle is reversible, for every joule of work done, the heat delivered to the surrounding will be nearly:

 
 
 
 

8. A thermodynamical system is changed from state (P1, V1) to (P², V²) by two different processes, the quantity which will remain same is:

 
 
 
 

9. In a Carnot’s engine, at the end point of the cycle, the temperature is

 
 
 
 

10. The first law of thermodynamics is represented as

 
 
 
 

11. Heat cannot by itself flow from a body at lower temperature to a body at higher temperature is a statement as a conseqence of

 
 
 
 

12. In a thermodynamic process, pressure of a fixed mass of the gas is changed in such a manner that the gas molecules give out 30 J of heat. Also, 10 J of work is done on the gas. If the internal energy of the gas was 40 J, what will be the final internal energy?

 
 
 
 

13. Tell which of the following phenomenon are reversible?

 
 
 
 

14. If an average person jogs, he produces 14.5 × 103 cal/min. This is removed by the evaporation of sweat. The amount of sweat evaporated per minute is assuming 1 kg requires 580 × 103 cal for evaporation

 
 
 
 

15. The efficiency of a Carnot engine working between 227°C and 27°C is

 
 
 
 

16. Internal energy of a perfect gas is

 
 
 
 

17. Tell which of the following phenomenon are reversible?

 
 
 
 

18. Thermodynamics is concerned with the

 
 
 
 

19. Sometimes a cycle with well inflated tyres left in the Sun has its tube burst open. This is because the

 
 
 
 

20. A Carnot engine whose sink is at 300 K has an efficiency of 40%. By how much should the temperature of source be increased, so as to increase its efficiency by 50% of original efficiency?

 
 
 
 

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