EASY

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The density of gas $A$ is twice that of $B$ . Molecular mass of $A$ is half the molecular mass of $B$ . The ratio of the partial pressure of $A$ and $B$ is:

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Important Questions on States of matter: Gaseous and liquid states

MEDIUM

Chemistry>Physical Chemistry>States of matter: Gaseous and liquid states>Ideal gas equation

The density of acetic acid vapour at

300 K

and

1 atm

5 mg {cm}^{- 3}

. The number of acetic acid molecules in the cluster that is formed in the gas phase is closest to

MEDIUM

Chemistry>Physical Chemistry>States of matter: Gaseous and liquid states>Ideal gas equation

At a constant pressure P, the plot of volume (V) as a function of temperature (T) for 2 moles of an ideal gas gives a straight line with a slope

0.328 L . K^{- 1}

. The value of P (in atm) is closest to

[Gas constant,

R = 0.0821 L a t m m o l^{- 1} K^{- 1}

]

EASY

Chemistry>Physical Chemistry>States of matter: Gaseous and liquid states>Ideal gas equation

300 K

, the density of a certain gaseous molecule at

2

bar is double to that of dinitrogen

(N_{2})

4

bar. The molar mass of the gaseous molecule is

EASY

Chemistry>Physical Chemistry>States of matter: Gaseous and liquid states>Ideal gas equation

The value of 1 mole of any pure ideal gas at standard temperature and pressure is always equal to

MEDIUM

Chemistry>Physical Chemistry>States of matter: Gaseous and liquid states>Ideal gas equation

Assuming ideal gas behavior, the ratio of density of ammonia to that of hydrogen chloride at same temperature and pressure is: (Atomic weight of Cl is 35.5 u)

EASY

Chemistry>Physical Chemistry>States of matter: Gaseous and liquid states>Ideal gas equation

Equal masses of

H_{2}, O_{2}

and methane have been taken in a container of volume

V

at temperature

27^{o} C

in identical conditions. The ratio of the volumes of gases

H_{2} : O_{2} :

methane would be

EASY

Chemistry>Physical Chemistry>States of matter: Gaseous and liquid states>Ideal gas equation

In a closed vessel, an ideal gas at

1 atm

is heated from

27^{o} C to 327^{o} C

, the final pressure of the gas will approximately be

HARD

Chemistry>Physical Chemistry>States of matter: Gaseous and liquid states>Ideal gas equation

Which one of the following graphs is not correct for ideal gas?

$d =$ Density, $P =$ Pressure, $T =$ Temperature

Question Image

EASY

Chemistry>Physical Chemistry>States of matter: Gaseous and liquid states>Ideal gas equation

An ideal gas has pressure

P

, volume

V

and absolute temperature

T

. If

m

is the mass of each molecule and

K

is the Boltzmann constant then density of the gas is

EASY

Chemistry>Physical Chemistry>States of matter: Gaseous and liquid states>Ideal gas equation

At constant pressure, the volume of a fixed mass of a gas varies as a function on temperature as shown in the graph

Question Image

The volume of the gas at $300 ° C$ is larger than that at $0 ° C$ by a factor of

MEDIUM

Chemistry>Physical Chemistry>States of matter: Gaseous and liquid states>Ideal gas equation

What is the density of water vapour at boiling point of water?

MEDIUM

Chemistry>Physical Chemistry>States of matter: Gaseous and liquid states>Ideal gas equation

The volume of gas $A$ is twice than that of gas $B$ . The compressibility factor of gas $A$ is thrice than that of gas $B$ at same temperature. What are the pressures of the gases for equal number of moles?

MEDIUM

Chemistry>Physical Chemistry>States of matter: Gaseous and liquid states>Ideal gas equation

A mixture of gases

O_{2}, H_{2}

and

C O

are taken in a closed vessel containing charcoal. The graph that represents the correct behaviour of pressure with time is:

HARD

Chemistry>Physical Chemistry>States of matter: Gaseous and liquid states>Ideal gas equation

Two closed bulbs of equal volume

(V)

containing an ideal gas initially at pressure

p_{i}

and temperature

T_{1}

are connected through a narrow tube of negligible volume, as shown in the figure below. The temperature of one of the bulbs is then raised to

T_{2} .

The final pressure

P_{f}

is:

EASY

Chemistry>Physical Chemistry>States of matter: Gaseous and liquid states>Ideal gas equation

Which of the following equations does NOT represent Charles’s law for a given mass of gas at constant pressure?

MEDIUM

Chemistry>Physical Chemistry>States of matter: Gaseous and liquid states>Ideal gas equation

The density of a certain gas at

30^{0} C

and

768

torr is

1.35 kg / m^{3}

, then density of the gas at

STP

MEDIUM

Chemistry>Physical Chemistry>States of matter: Gaseous and liquid states>Ideal gas equation

The minimum pressure required to compress

600 {dm}^{3}

of a gas at

1

bar to

150 {dm}^{3}

40 ° C

EASY

Chemistry>Physical Chemistry>States of matter: Gaseous and liquid states>Ideal gas equation

10 moles of a mixture of hydrogen and oxygen gases at a pressure of 1 atm at a constant volume and temperature, react to form 3.6 g of liquid water. The pressure of the resulting mixture will be closest to:

MEDIUM

Chemistry>Physical Chemistry>States of matter: Gaseous and liquid states>Ideal gas equation

An open vessel at

27^{o} C

is heated until two fifth of the air (assumed as an ideal gas) in it has escaped from the vessel. Assuming that the volume of the vessel remains constant, the temperature to which the vessel has been heated is:

EASY

Chemistry>Physical Chemistry>States of matter: Gaseous and liquid states>Ideal gas equation

0.5

moles of gas

A

and

x

moles of gas

B

exert a pressure of

200 P a

in a container of volume

10 m^{3}

1000 K

. Given,

R

is the gas constant in

{JK}^{- 1} {mol}^{- 1}, x

is:

The density of gas A is twice that of B. Molecular mass of A is half the molecular mass of B. The ratio of the partial pressure of A and B is:

Important Questions on States of matter: Gaseous and liquid states

Learn and Prepare for any exam you want !

The density of gas $A$ is twice that of $B$ . Molecular mass of $A$ is half the molecular mass of $B$ . The ratio of the partial pressure of $A$ and $B$ is: