Assertion : Gases do not liquefy above their | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) The critical temperature $(T_c)$ of a gas is the temperature above which it cannot be liquefied,no matter how much pressure is applied. This is be

Vedclass · Accepted Answer

If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.

Vedclass · Answer

(A) The critical temperature $(T_c)$ of a gas is the temperature above which it cannot be liquefied,no matter how much pressure is applied. This is because,above $T_c$,the kinetic energy of the gas molecules is so high that the intermolecular forces of attraction are insufficient to hold the molecules together in the liquid state. Therefore,both the Assertion and the Reason are correct,and the Reason is the correct explanation of the Assertion.

Assertion : Gases do not liquefy above their critical temperature,even on applying high pressure.
Reason : Above critical temperature,the molecular speed is high and intermolecular attractions cannot hold the molecules together because they escape because of high speed.

Similar Questions

The critical temperature of $O_2$ is $154.3 \ K$ and the critical temperature of $N_2$ is $126.0 \ K$. Which gas will liquefy first during the liquefaction of air?

Which among the following gases liquefy easily?

Ice,water,and steam coexist in equilibrium at which of the following conditions?

Liquefaction of a gas can occur $....................$

Which intermolecular force is most responsible for allowing $Xe$ gas to liquefy?

Vedclass Test Series

Exam Paper Generator

Online Exam Module

Assertion : Gases do not liquefy above their critical temperature,even on applying high pressure.Reason : Above critical temperature,the molecular speed is high and intermolecular attractions cannot hold the molecules together because they escape because of high speed.