(B) Option $B$ is incorrect. When a liquid is in equilibrium with its vapor in a closed vessel,increasing the temperature increases the kinetic energy

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If a liquid is in equilibrium with its vapor,increasing the temperature decreases the density of the vapor.

(B) Option $B$ is incorrect. When a liquid is in equilibrium with its vapor in a closed vessel,increasing the temperature increases the kinetic energy of the molecules,causing more liquid to evaporate. This leads to an increase in the number of vapor molecules per unit volume,thereby increasing the density of the vapor,not decreasing it.

Class 11 Chemistry States of Matter Critical state and Liquefaction of gases

Medium

Identify the incorrect statement regarding the properties of liquids and vapors.

A
Boiling does not occur when a liquid is heated in a closed vessel.
B
If a liquid is in equilibrium with its vapor,increasing the temperature decreases the density of the vapor.
C
At the critical temperature,the density of the liquid and vapor phases becomes the same.
D
At the critical temperature,the liquid passes into the gaseous state imperceptibly and continuously.