(B) The critical temperature of $CO_2$ is $31.1^{\circ} C$ $(304.1 \ K)$,not $27.5^{\circ} C$. Therefore,statement $B$ is incorrect.At Boyle temperatu

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Critical temperature of $CO_2$ is $27.5^{\circ} C$.

(B) The critical temperature of $CO_2$ is $31.1^{\circ} C$ $(304.1 \ K)$,not $27.5^{\circ} C$. Therefore,statement $B$ is incorrect.At Boyle temperature,the effects of attractive and repulsive forces balance out,making the gas behave ideally over a range of pressure.Above the critical temperature,gases cannot be liquefied by pressure alone,and they exhibit behavior closer to ideal gases as temperature increases.For $H_2$ and $He$,the compressibility factor $Z$ is always greater than $1$ at room temperature because the repulsive forces dominate due to their small molecular size.

Class 11 Chemistry States of Matter Mix Examples- States of Matter

Medium

Choose the incorrect statement from the following:

AP EAMCET 2025 All AP EAMCET

A
At Boyle temperature,a real gas obeys the ideal gas law over an appreciable range of pressure.
B
Critical temperature of $CO_2$ is $27.5^{\circ} C$.
C
Above critical temperature,a real gas behaves like an ideal gas.
D
At room temperature and $1 \ atm$ pressure,the compressibility factor $(Z)$ for $H_2$ gas is greater than $1$.

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Mix Examples- States of Matter

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$A$ $x : 1$ molar mixture of $He$ and $CH_4$ is contained in a vessel at $20 \ bar$ pressure. Due to a hole in the vessel,the gas mixture leaks out. If the composition of the mixture effusing out initially is $8 : 1$,then the value of $x$ will be

Medium

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$A$ beaker containing a mixture of liquid $A$ and liquid $B$,in equilibrium with each other,is cooled very slowly. If point '$D$' on the graph is where solidification of both liquids is complete,how many different phases co-exist along line '$C D$' if freezing points of liquid $B$ and liquid $A$ are $-25^{\circ} C$ and $-78^{\circ} C$ respectively?

DifficultAP EAMCET 2020

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$A$ gas $A$ diffuses at a rate which is twice that of another gas $B$. The ratio of molecular weights of $A$ to $B$ is

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$A$ mixture of equal masses of $SO_2$,$CH_4$,and $O_2$ is taken in an empty container at $298 \, K$. If the total pressure is $2.1 \, atm$,the partial pressure of $CH_4$ in the mixture will be .......... $atm$.

Easy

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Match the following items in List-$I$ with the appropriate items in List-$II$:
List-$I$ List-$II$
$(A)$ Viscosity $(I)$ Critical temperature
$(B)$ Ideal gas behaviour $(II)$ Isobars
$(C)$ Liquefaction of gases $(III)$ Compressibility factor
$(D)$ Charles' law $(IV)$ $kg \ s^{-2}$
$(V)$ $kg \ m^{-1} \ s^{-1}$

List-$I$	List-$II$
$(A)$ Viscosity	$(I)$ Critical temperature
$(B)$ Ideal gas behaviour	$(II)$ Isobars
$(C)$ Liquefaction of gases	$(III)$ Compressibility factor
$(D)$ Charles' law	$(IV)$ $kg \ s^{-2}$
	$(V)$ $kg \ m^{-1} \ s^{-1}$

MediumTS EAMCET 2015

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$A$ $x : 1$ molar mixture of $He$ and $CH_4$ is contained in a vessel at $20 \ bar$ pressure. Due to a hole in the vessel,the gas mixture leaks out. If the composition of the mixture effusing out initially is $8 : 1$,then the value of $x$ will be

$A$ gas $A$ diffuses at a rate which is twice that of another gas $B$. The ratio of molecular weights of $A$ to $B$ is

$A$ mixture of equal masses of $SO_2$,$CH_4$,and $O_2$ is taken in an empty container at $298 \, K$. If the total pressure is $2.1 \, atm$,the partial pressure of $CH_4$ in the mixture will be .......... $atm$.

Match the following items in List-$I$ with the appropriate items in List-$II$:List-$I$List-$II$$(A)$ Viscosity$(I)$ Critical temperature$(B)$ Ideal gas behaviour$(II)$ Isobars$(C)$ Liquefaction of gases$(III)$ Compressibility factor$(D)$ Charles' law$(IV)$ $kg \ s^{-2}$$(V)$ $kg \ m^{-1} \ s^{-1}$

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