A ternary mixture of $60$mol.$\%$ methane $(CH),10$mol.$\%$ propane $(C3H8),$ and $30$mol.$\%n-$pentane $(n-C5H10)$ is

brought to an equilibrium state at $P=1,500$ psia and $T=160F$ :

a$)$ Determine the composition of the equilibrium gas phase and the composition of the equilibrium liquid phase

of this mixture in mole percent, respectively.

b$)$ If the quantity of the equilibrium gas phase of this mixture is $2\mathrm{.}0lb$ moles, determine the total quantity of the

gas$-$liquid mixture and the quantity of the equilibrium liquid phase in lb moles, respectively; and

c$)$ With all the compositions and quantities, further calculate and complete the quantities in lb moles listed in

the following table: