What will be the phase of $CO_2$ at critical pressure $P_C$ and temperatures of $13.1^{\circ}C$,$31.5^{\circ}C$,$50^{\circ}C$,and $30.98^{\circ}C$?

(N/A) The critical temperature $(T_C)$ of $CO_2$ is $31.1^{\circ}C$ (standard value).
At $30.98^{\circ}C$ (which is approximately $T_C$),$CO_2$ exists in equilibrium between gas and liquid phases.
At $13.1^{\circ}C$ $(T < T_C)$,$CO_2$ exists as a liquid at high pressure.
At $31.5^{\circ}C$ and $50^{\circ}C$ $(T > T_C)$,$CO_2$ exists as a gas regardless of the pressure applied.