The following equation of state describes the behavior of a certain fluid:
P(V-b) = RT + (aP^2)/T
where constants are a= 10?3 m3-K/bar-mol= 100 J-K/bar2-mol and b =8.0 ×10?5 m3/mol Also for this fluid the mean ideal gas constant pressure heat capacity over the range of 273-573 K at 1 bar is 33.5J/mol-K
• Estimate the mean value of Cp over the same temperature range at 12 bar.
a) Calculate the enthalpy change of the fluid for a change from P= 4 bar, T= 300 K to P=12 bar to T=400 K.
b) Calculate the entropy change for the same set of conditions as in (b)