# Physics Heat and Thermodynamics Online Quiz Test MCQs

Here we have a free online quiz which includes mcqs questions and answers related to the topic of Heat and Thermodynamics . All the individuals who are currently preparing for any physics subject related exam or just want to improve their general knowledge related to this topic, should attempt these tests in order to complete their preparation in a short time period with ease.

## Physics

1. In an isothermal process, the internal energy of the system:

Question 1 of 15

2. Absolute zero is considered as that temperature at which:

Question 2 of 15

3. When the disorder of the state of system increases, its entropy:

Question 3 of 15

4. When two objects come to common temperature, the body is said to be in:

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5. Number of spark plugs needed in diesel engine is:

Question 5 of 15

6. The temperature at which all the gases become liquid is called:

Question 6 of 15

7. The law of thermodynamics which discusses the condition under which heat energy is converted into an equivalent amount of work is:

Question 7 of 15

8. A gas which strictly obeys the gas laws under all conditions of temperatures and pressure is called:

Question 8 of 15

9. Hotness or coldness of an object is represented in term of:

Question 9 of 15

10. Thermal radiations are type of:

Question 10 of 15

11. For a gas obeying Boyle's law, if the pressure is doubled the volume becomes:

Question 11 of 15

12. A certain engine converts 20% of available heat energy into work. Then its efficiency will be:

Question 12 of 15

13. Real gases strictly obey gas laws at:

Question 13 of 15

14. First law of thermodynamics is merely a statement of law of conservation of:

Question 14 of 15

15. One degree of thermodynamics scale of temperature is called:

Question 15 of 15

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