$\mathbf{critical}\mathbf{}\mathbf{pressure}\mathbf{=}\mathbf{2}\mathbf{.}\mathbf{55}\mathbf{\times}{\mathbf{10}}^{\mathbf{4}}\mathbf{}\overline{)\mathbf{torr}}\mathbf{\times}\frac{\mathbf{1}\mathbf{}\mathbf{atm}}{\mathbf{760}\mathbf{}\overline{)\mathbf{torr}}}$

**critical pressure = 33.55 atm**

$\mathbf{triple}\mathbf{}\mathbf{point}\mathbf{=}\mathbf{94}\mathbf{.}\mathbf{0}\mathbf{}\overline{)\mathbf{torr}}\mathbf{\times}\frac{\mathbf{1}\mathbf{}\mathbf{atm}}{\mathbf{760}\mathbf{}\overline{)\mathbf{torr}}}$

**triple point = 0.12 atm**

Nitrogen has a normal boiling point of 77.3 K and a melting point (at 1 atm) of 63.1 K. Its critical temperature is 126.2 K and critical pressure is 2.55x10^{4} torr. It has a triple point at 63.1 K and 94.0 torr.

Sketch the phase diagram for nitrogen to answer if nitrogen has a stable liquid phase at 1 atm.

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