heat capacity of liquid benzene is $133$ and Tm $=1500,$ a $=-33\mathrm{.}893,$ b $*10^3=471\mathrm{.}793,$ c$*10^6=-298\mathrm{.}294,$ d$*10^9=70\mathrm{.}823$

Please do the following before coming to class on Monday to help us solve the problem using different methods:

$1.$ Heat capacity of liquid benzene is $133$ J$/$g K$.$

Calculate h$4-$h$1$ in KJ$/$Mol$.$

$2.$ Calculate heat of vaporization of benzene at T$4.$

$3.$ Calculate van Der waals constants $\text{'}$a$\text{'}$ and $\text{'}$b$\text{'}.($Tc and Pc can be obtained from relevant table sent to you.$)$

$4.$ Calculate vapor volume at state $2$ and $3.$

$5.$ Integrate Cp$($vapor$)$ dT and determine the value.

The Cp of benzene vapor can be obtained from table below.