Problem $10\mathrm{.}3$: Your company faxed you some results, shown below, for the system hydrogen $(+)/$ methane $(2).$ Use these data to answer the following:

a$)$ Because the tax machine malfunctioned, some entries were missing. Supply the missing numbers and explain your calculations.

b$)$ What is the saturation pressure of methane at $250$ K$?$

c$)$ Calculate the Lugacity of saturated liquid methane at $250$ K$.$

d$)$ Calculate the fugacity of methane at $250$ K$,300$ bar.

e$)$ A solution with composition $21=0\mathrm{.}2$ is to be stored at $250$ K$.$ It is important to

avoid the formation of vapor. What is the minimum pressure required?

f$)$ Calculate the volume of the tank needed to store a saturated liquid mixture of

the two components with composition $21=0\mathrm{.}2$ at $250$ K$.$ Report the result in cubicmeters per million of mol.