Question

Two moles of an ideal gas is expanded isothermally and reversibly from 1 litre to 10 litre at 300 K. The internal energy change (in kJ) for the process is

• A. 11.4 kJ
• B. -11.4 kJ
• C. 0 kJ
• D. 4.8 kJ

Answer 1

The correct option is C 0 kJ

we know,

$△U=n{C}_V△T$ since $△T=0$

$△U$ will be zero