4. Consider a cylinder fitted with a piston that contains 2 mol of H₂O in a container at

1000 K. Calculate how much work is required to isothermally and reversibly compress

this gas from 10 L to 1 L, in each of the following cases:

a) Use the Ideal gas model

b) Use the Redlich-Kwong equation (You can use software to solve integration)

c) Use the Steam tables

d) Compare these three methods.