Question

One mole of an ideal gas at 300 K is expanded isothermally from an initial volume of 1 litre to 10 litres. The Δ E for this process is (R = 2 cal mol⁻¹ K⁻¹):

• A. 163.7 cal
• B. zero
• C. 1381.1 cal
• D. 9 litre atm

Hint:

Internal energy of an ideal gas depends only on temperature.

Answer 1

The Correct Option is B

For an isothermal process of an ideal gas, internal energy remains constant.