JEE Main & Advanced
Chemistry
Thermodynamics / रासायनिक उष्मागतिकी
Question Bank
2nd and 3rd law of thermodynamics and Entropy
question_answer
One mole of an ideal gas at \[300K\] is expanded isothermally from an initial volume of 1 litre to 10 litres. The change in energy for this process is \[(R=2\,cal\,mo{{l}^{-1}}{{K}^{-1}})\] [CBSE PMT 1998]
A) 163.7 cal
B) 850.2 cal
C) 1381.1 cal
D) Zero
Correct Answer:
D
Solution :
For isothermal expansion of ideal gas, \[\Delta E=0\].