Thermodynamics

Question

Two liters of N2 at 0°C and 5 atm pressure are expanded isothermally against a constant
pressure of 1 atm until the pressure of the gas is also 1 atm. Assuming the gas to be ideal,
what are the values of W, ∆E, Q and ∆H. Express you final answers in calories. (NOTE:
24.22 cal = 1 L-atm)

Answer 1

Since the external pressure is greatly different from the pressure of  N₂ and thus, the process is irreversible.