| Which of the following phenomena occur during the adiabatic heating of gas? |
| 1. Heat input from the surrounding |
| 2. Change in entropy of the gas |
| 3. Compression of the gas |
| Select the correct answer using the codes given below. |
A) 1 and 2
B) 1 and 3
C) Only 2
D) Only 3
Correct Answer: D
Solution :
[d] An adiabatic process is one, in which there is no heat exchange with the surrounding. There is an increase in entropy of the gas during a irreversible adiabatic process. However, during a reversible adiabatic process, there is no change in entropy. Adiabatic heating involves compression of the gas, while adiabatic cooling involves expansion of the gas.
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