A sample consisting of 1.00 mol of a van der Waals gas is compressed from 20.0 dm

Question:

A sample consisting of 1.00 mol of a van der Waals gas is compressed from 20.0 dm³ to 10.0 dm³ at 300 K. In the process, 20.2 kJ of work is done on the gas. Given that µ = {(2a/RT) − b}/C_p,m, with C_p,m = 38.4 J K⁻¹ mol⁻¹ , a = 3.60 dm⁶ atm mol⁻², and b = 0.44 dm³ mol⁻¹, calculate ∆H for the process.