A high pressure tank contuias I kmol of methane at $T=248\mathrm{.}3K$ and $p=139\mathrm{.}2$ bar.

a$)$ What is the compressibility fictor of methane at these conctitions?

b$)$ What is the volume of the tank?

c$)$ What is the mass density of macthane at these conditions?

d$)$ Based on your value of the compocsibility factor, explain cencisely if methane is behavin as an ideal gas at these condinions?

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