Question 11

A balloon contains 63 litres of helium at 322K and 198,535Pa. After 41 minutes, its volume and temperature are found to be unchanged from their original values. What is the change in internal energy, in kJ, assuming compression work as the only form of work for the process.

Your answer should be numerical and neglect units (e.g., if you calculate 298 kJ then input 298).