5-14 The equation of state of a gas is given as V(P +10/v)kPa, respectively. Now 0.2 kmol of this gas is expanded in a quasi-equilibrium manner from 2 to 4

m at a constant temperature of 350 K. Determine (a) the unit of the quantity 10in the equation and (b) the work done during this isothermal expansion process.RT, where the units of V and P are m/kmol and