States of matter practice · Medium

Vapour pressure of liquid does/do not depend(s) on

Which of the following statements is not true?

Given below are two statements. One is labelled as Assertion A and the other is labelled as Reason
R.
Assertion A: Activated charcoal adsorbs $\mathrm{SO}_2$ more efficiently than $\mathrm{CH}_4$.

Reason R: Gases with lower critical temperatures are readily adsorbed by activated charcoal.
In the light of the above statements, choose the correct answer from the options given below.

A bottle of dry ammonia and a bottle of dry hydrogen chloride connected through a long tube are opened simultaneously at both ends. The white ammonium chloride ring first formed will be

S-I: $\mathrm{CH}_4, \mathrm{CO}_2$ has value of $\mathrm{Z}$ (compressibility factor) less than one at $0^{\circ} \mathrm{C}$.

S-II: $\text{Z} < 1$ is due to the attractive forces dominate among the molecules.

Where is the pressure less than 1 atm?

Equal masses of ${O}_2$ and ${CH}_4$ have been taken in same container of volume ${V}$ at $25^{\circ} {C}$. The ratio of volume of gases effuses out initially from vessel is

Energy of sublimation of solid helium is much lower than that of ice because

The temperature of a gas in a closed container is $27^{\circ} \mathrm{C}$. If the temperature is raised to $327^{\circ} \mathrm{C}$, the pressure exerted is

Assertion (A): Compressibility factor for hydrogen varies with pressure with positive slope at all pressures.

Reason (R): Even at low pressures, repulsive forces dominate hydrogen gas.

At what temperature is the rms speed of hydrogen molecules the same as that of oxygen molecules at $1327\,\,^\circ C$ ?

Calculate the radius of He atoms if its Vander Waal&rsquo;s constant &lsquo;b&rsquo; is 24 ml $mo{l^{ - 1}}$: (Note $ml$ =cubic centimeter)

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

In Vander Wal’s equation, the constant ‘b’ is the measure of:

The critical temperature of a gas is related to van der Waal’s constants as

The rates of diffusion of ${\mathrm{O}_2}$ and ${\mathrm{H}_2}$ at same $P$ and $T$ are in the ratio:

A human adult breathes in approximately $0.50 \mathrm{~dm}^3$ of air at $1.00 \mathrm{~bar}$ with each breath. If an air tank holds $100 \mathrm{~dm}^3$ of air at $200 \mathrm{~bar},$ how many breathes the tank will supply?

The density of gas is found to be $1.41 \mathrm{~g} / \mathrm{L}$ at $700 \mathrm{~mm} \mathrm{~Hg}$ pressure and $350 \mathrm{~K}$ temperature. Gas can be

Assertion: Dalton's law of partial pressure is a special case of Raoult's law.

Reason: Dalton's law applies only to ideal gas mixtures, whereas Raoult's law applies to solutions.

If volume containing gas is compressed to half, how many moles of gas remained in the vessel?

Which gas can be most readily liquefied?

Which of the following is incorrect about S.I units?

One poise is equal to:

Charles’ law is represented mathematically as

The Vander Waal’s constant ‘a’ for the gases ${O_2},{N_2},N{H_3}\,\mathrm{and}\,\,C{H_4}$ are 1.360, 1.390, 4.170, 2.253 ${L^2} \cdot atm \cdot mo{l^{ - 1}}$ respectively. The gas which can be most easily liquefied is

At 400 K, the root mean square (rms) speed of a gas $X$ (molecular weight = 40) is equal to the most probable speed of gas $Y\,\,at\,\,60\,\,K$. The molecular weight of the gas Y is

The compressibility factor for one mole of real gas at very low pressure is

Assertion (A): Average speed of molecules, if a gas in a
container moving only in one direction, will be zero.
Reason (R): The molecules of gas are not collected in one
direction.

The average speed of gas molecules is equal to:

Assertion : Compressibility factor for hydrogen varies with pressure with positive slope at all pressures.

Reason : Even at low pressure, repulsive forces dominate hydrogen gas.