Chemistry Crash Course NEET>Chapter 3 - States of Matter: Gases and Liquids>Level 2>Q 37

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The ratio between the $r . m . s .$ velocity of $H_{2}$ at $50 K$ and that of $O_{2}$ at $800 K$ is:

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Important Questions on States of Matter: Gases and Liquids

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Chemistry Crash Course NEET>Chapter 3 - States of Matter: Gases and Liquids>Level 2>Q 38

The values of Van der Waals constant,

{}^{''}a^{''}

, for the gases

O_{2}, N_{2}, {NH}_{3} & {CH}_{4}

are

1.36, 1.39, 4.17, 2.253 L^{2} atm {mole}^{- 2}

, respectively. The gas which can most easily be liquefied is:

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Chemistry Crash Course NEET>Chapter 3 - States of Matter: Gases and Liquids>Level 2>Q 39

The plot that is not valid for an ideal gas where

P

is the pressure and

V

is the volume of the gas is:

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Chemistry Crash Course NEET>Chapter 3 - States of Matter: Gases and Liquids>Level 2>Q 40

An ideal gas is subjected to a cyclic change as shown in the $P - V$ diagram below:

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The step in which the gas will cool down is along:

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Chemistry Crash Course NEET>Chapter 3 - States of Matter: Gases and Liquids>Level 2>Q 41

Two balloons,

A

and

B

, containing

0.2

mole and

0.1

mole of helium at room temperature and

2.0 atm

., respectively, are connected. When an equilibrium is established, the final pressure of

He

in the system is:

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Chemistry Crash Course NEET>Chapter 3 - States of Matter: Gases and Liquids>Level 2>Q 42

At

298 K

, assuming ideal behaviour, the average kinetic energy of a deuterium molecule is:

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Chemistry Crash Course NEET>Chapter 3 - States of Matter: Gases and Liquids>Level 2>Q 43

A specific volume of

H_{2}

requires

24 s

to diffuse out of a container. The time required by an equal volume of

O_{2}

to diffuse out under identical conditions is:

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Chemistry Crash Course NEET>Chapter 3 - States of Matter: Gases and Liquids>Level 2>Q 44

The density of acetic acid vapor at

300 K

and

1 atm

is

5 mg {cm}^{- 3}

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

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Chemistry Crash Course NEET>Chapter 3 - States of Matter: Gases and Liquids>Level 2>Q 45

The volume vs. temperature graph of $1$ mole of an ideal gas is given below. The pressure of the gas (in $atm$ ) at $X, Y$ and $Z$ , respectively, are

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