Modern Approach to Chemical Calculations>Chapter 12 - Properties of Gases>Objective Problems>Q 18

HARD

JEE Main

IMPORTANT

Earn 100

If the atomic weights of $C, N$ and $O$ are $12, 14$ and $16$ , respectively, then among the following pair of gases, the pair that will diffuse at the same rate under similar conditions.

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Important Questions on Properties of Gases

HARD

JEE Main

IMPORTANT

Modern Approach to Chemical Calculations>Chapter 12 - Properties of Gases>Objective Problems>Q 19

2 g

of hydrogen diffuse from a container in

10

minutes

. How many

grams

of oxygen would diffuse through the same container in the same time under similar conditions?

HARD

JEE Main

IMPORTANT

Modern Approach to Chemical Calculations>Chapter 12 - Properties of Gases>Objective Problems>Q 20

Four rubber tubes are filled with

H_{2}, O_{2}, N_{2}

and

He

, respectively. The tube which will be required to be reinflated first is

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JEE Main

IMPORTANT

Modern Approach to Chemical Calculations>Chapter 12 - Properties of Gases>Objective Problems>Q 21

Equal weights of methane and hydrogen are mixed in an empty container at

25 ° C

. The fraction of the total pressure exerted by hydrogen is

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JEE Main

IMPORTANT

Modern Approach to Chemical Calculations>Chapter 12 - Properties of Gases>Objective Problems>Q 22

The specific gravity of

{CCl}_{4}

, vapour at

0 ° C

and

76 cm

Hg

in

grams / litre

is:

HARD

JEE Main

IMPORTANT

Modern Approach to Chemical Calculations>Chapter 12 - Properties of Gases>Objective Problems>Q 23

The

r . m . s .

speed of gas molecules at a temperature

27 K

and pressure

1.5 bar

is

1 \times 10^{4} cm / s .

If both temperature and pressure are raised three times, the

r . m . s .

speed of the gas will be:

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JEE Main

IMPORTANT

Modern Approach to Chemical Calculations>Chapter 12 - Properties of Gases>Objective Problems>Q 24

The ratio of

rms

velocity to average velocity of gas molecules at a particular temperature is

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JEE Main

IMPORTANT

Modern Approach to Chemical Calculations>Chapter 12 - Properties of Gases>Objective Problems>Q 25

The average velocity of an ideal gas molecule at

27 ° C

is

0.3 m / s

. The average velocity at

927 ° C

will be

EASY

JEE Main

IMPORTANT

Modern Approach to Chemical Calculations>Chapter 12 - Properties of Gases>Objective Problems>Q 26

Kinetic energy per mole of an ideal gas,