In Physical Chemistry (States of Matter), the concept of Critical Temperature (Tc) is fundamental to understanding how gases are liquefied.
Definition: Temperature above which a gas cannot be liquefied by pressure alone.
Symbol: Tc.
CO₂ Critical Temp: 30.98 °C.
Importance: Determines how easily a gas can be stored as a liquid.
The Critical Temperature (Tc) of a gas is the temperature above which the gas cannot be liquefied, no matter how much pressure is applied.
Every gas has a specific critical temperature. If the gas is hotter than this temperature, its kinetic energy is so high that intermolecular forces cannot pull the molecules together into a liquid, even if you compress them infinitely.
Critical temperature is the maximum temperature at which a substance can exist as a liquid. Above this temperature, a gas cannot be liquefied regardless of how much pressure is applied.
No. The critical temperature of CO₂ is 30.98 °C. At 35 °C, it is above its critical temperature, so it cannot be liquefied by pressure.
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