With the help of fthermondynamic equation of state
`((delU)/(delV))_(T)=T((delP)/(delT))_(V)-P`
Answer the following questions for a van der Waals' gas
`P=(nRT)/(V-nb)-(an^(2))/V^(2)`
` DeltaH` for the insothermal process from `(P_(1)V_(1)T)`to `(P_(2)V_(2)T)` to is :

Options

A. `DeltaH=(P_(2)V_(2)-P_(1)V_(1))`
B. `DeltaH=-an^(2)((1)/V_(2)-(1)/V_(1))+(P_(2)V_(2)-P_(1)V_(1)`
C. `DeltaH =-an^(2)(1/V_(2)-(1)/V_(1))+nRT[(V_(2))/(V_(2)-nb)-(V_(1))/(V_(1)-nb)]`
D. `DeltaH=nRT[(V_(2))/(V_(2)-nb)-(V_(1))/(V_(1)-nb)]`

Answer

b,c