Thermodynamics Question 127
Question: In a given process for an ideal gas, $ dW=0 $ and $ dQ<0. $ Then for the gas
[IIT-JEE (Screening) 2001]
Options:
A) The temperature will decrease
B) The volume will increase
C) The pressure will remain constant
D) The temperature will increase
Show Answer
Answer:
Correct Answer: A
Solution:
From FLOT
Therefore $ dU=dQ-dW\Rightarrow dU=dQ(<0) $
$ (\because \ \ dW=0) $
$ \Rightarrow dU<0 $ So temperature will decrease.
