List of top Chemistry Questions on States of matter

What will be the relation between the $ T_1 $ of gas $ 1 $ with $ M_1 = 56 $ and $ T_2 $ of gas $ 2 $ with $ M_2 = 44 $ if the average speed of gas $ 1 $ is equal to most probable speed of gas $ 2 $ ?

In van der Waals equation at constant temperature 300 K, if a = 1.4 atm L mol, V = 100 mL, n = 1 mole, then what is the pressure of the gas?

Gas in a cylinder is maintained at $10 \,atm$ pressure and $300\, K$ temperature. The cylinder will explode if pressure of gas goes beyond $15\, atm$. What is the maximum temperature to which gas can be heated?

For an ideal gas, compressibility factor is

Among the following, the incorrect statement is :

At $300\, K$, the density of a certain gaseous molecule at $2$ bar is double to that of dinitrogen $(N_2)$ at $4$ bar. The molar mass of gaseous molecule is :

Equal moles of hydrogen and oxygen gases are placed in a container with a pin-hole through which both can escape. What fraction of the oxygen escapes in the time required for one-half of the hydrogen to escape ?

At very high pressures, the compressibility factor of one mole of a gas is given by :

At what temperature, the rate of effusion of $N_2$ would be $1.625$ times than that of $SO_2$ at $50^{\circ} C$ ?

Which of the following demonstrates non-ideal behaviour of a gas?

The root means square velocity of hydrogen at $ STP $ is $ 1.83 \times 10^5 \,cm \, sec^{-1} $ and its means free path is $ 1.78 \times 10^{-5} \,cm $ . What will be the collision number at $ STP $ ?

Critical temperature of CO is 304 K, it cannot be liquified above 304 K. At a certain temperature, $volume \propto\frac{1}{pressure}$

Which of the following is the correct option for free expansion of an ideal gas under adiabatic condition?

A gas such as carbon monoxide would be most likely to obey the ideal gas law at :

When does a gas deviate the most from its ideal behaviour ?

The intermolecular interaction that is dependent on the inverse cube of distance between the molecules is

The reduced volume and reduced temperature of a gas are $10.2$ and $0.7$ respectively. If its critical pressure is $4.25\, atm$ then its pressure will be

A gas at high temperature is cooled. The highest temperature at which liquefaction of gas first occurs is called

A gas can be liquefied at temperature $T$ and pressure $P$ provided

The RMS velocity of $CO$ gas molecules at $27^{\circ}$C is approximately $1000\, m/s$. For $N_2$ molecules at $600 \,K$ the RMS velocity is approximately

$20\, dm^{3}$ of $SO_{2}$ diffuse through a porous partition in $60\, s$. What volume of $O_{3}$ will diffuse under similar conditions?

Equal masses of $H_2, O_2$ and methane have been taken in a container of volume V at temperature $27^\circ$C in identical conditions. The ratio of the volumes of gases ${H_2 : O_2 :CH_4}$ would be

The initial volume of a gas cylinder is 750.0 \,mL. If the pressure of gas inside the cylinder changes from $840.0 \,mm$ Hg to 360.0 mm Hg, the final volume the gas will be :

If Z is a compressibility factor, van der Waals equation at low pressure can be written as

Van der Waal's equation for a gas is stated as, $p = \frac{nRT}{V-nb}-a\left(\frac{n}{V}\right)^{2}.$ This equation reduces to the perfect gas equation, $p = \frac{nRT}{V}$ when ,