Thermodynamics MCQ with Answers

Thermodynamics MCQ with Answers

11) Which of the following has the minimum atomic mass?

Answer is:

Carbon

Explanation:

Atomic mass of different elements.
Oxygen = 15.99u
Sulphur = 32.07u
Nitrogen = 14.007u
Carbon =12.0107 u

Which of the following has the minimum atomic mass?

12) Workdone in a free expansion process is

Answer is:

zero

13) The pressure exerted by an ideal gas is __________ of the kinetic energy of all the molecules contained in a unit volume of gas.

Answer is:

two-third

14) The compression ratio for petrol engines is

Answer is:

5 to 8

15) The efficiency of Diesel cycle approaches to Otto cycle efficiency when

Answer is:

cut-off is zero