What happens when CO_2 is compressed and expa | vedclass

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Question

(C) The temperature $30.98 \, ^\circ C$ is the critical temperature of $CO_2$. At this temperature,the (gas + liquid) coexistence region is observed.

Vedclass · Accepted Answer

The (gas + liquid) region widens,and it eventually turns into a liquid upon sufficient compression.

Vedclass · Answer

(C) The temperature $30.98 \, ^\circ C$ is the critical temperature of $CO_2$. At this temperature,the (gas + liquid) coexistence region is observed. As the pressure increases (compression),the gas gradually liquefies. As the pressure decreases (expansion),the liquid turns back into gas. Beyond the critical point,it exists as a supercritical fluid.

What happens when $CO_2$ is compressed and expanded at a constant temperature of $30.98 \, ^\circ C$?

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