HARD

JEE Main

IMPORTANT

Earn 100

The value of ' $b$ ' for steam is $0.0305 L {mol}^{- 1}$ . The density of liquid water is $0.958 g {ml}^{- 1}$ at $100 ° C$ . What percentage of volume of water molecules occupy in gaseous phase of water in liquid phase?

Important Questions on States of Matter

HARD

JEE Main

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Physical Chemistry Part 1 JEE Main & Advanced>Chapter 4 - States of Matter>DPP 4.5>Q 3

Determine the pressure exerted by

5 mole

{CO}_{2}

1 L

vessel at

47 ° C

using van der Waals equation. Also report the pressure of gas, if it behaves ideally in nature. Given

a = 3.592 atm L^{2} {mol}^{- 2}, b = 0.0427 L {mol}^{- 1}

MEDIUM

JEE Main

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Physical Chemistry Part 1 JEE Main & Advanced>Chapter 4 - States of Matter>DPP 4.5>Q 4

Calculate the compressibility factor for carbon dioxide, if one mole of it occupies

0.4 L

300 K

and

40 atm

. Comment on the result.

HARD

JEE Main

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Physical Chemistry Part 1 JEE Main & Advanced>Chapter 4 - States of Matter>DPP 4.5>Q 5

For a given real gas, the compressibility factor is

0.927

273 K

and

100 atm

. Calculate the mass of gas required to fill a gas cylinder of

100 L

capacity under given conditions. [Molar mass of gas

= 30

]

MEDIUM

JEE Main

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Physical Chemistry Part 1 JEE Main & Advanced>Chapter 4 - States of Matter>DPP 4.5>Q 6

At Boyle's temperature, the value of the compression factor

Z (= {pV}_{m} / RT = V_{real} / V_{ideal})

has a value of one over a wide range of pressure. This is due to the fact that in the van der Waals equation.

EASY

JEE Main

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Physical Chemistry Part 1 JEE Main & Advanced>Chapter 4 - States of Matter>DPP 4.5>Q 7

Which of the following expressions is correct between the van der Waals constant

b

and the radius

r

of spherical molecules?

MEDIUM

JEE Main

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Physical Chemistry Part 1 JEE Main & Advanced>Chapter 4 - States of Matter>DPP 4.5>Q 8

The value of compressibility factor of a Van der Waal's gas at critical point is:

HARD

JEE Main

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Physical Chemistry Part 1 JEE Main & Advanced>Chapter 4 - States of Matter>DPP 4.5>Q 9

The pressure exerted by

1 mole

{CO}_{2}

273 K

34.98 atm

, assuming that volume occupied by

{CO}_{2}

molecules is negligible. The value of Van der Waal's constant for attraction of

{CO}_{2}

gas is:

HARD

JEE Main

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Physical Chemistry Part 1 JEE Main & Advanced>Chapter 4 - States of Matter>DPP 4.5>Q 10

For one mole of a Van der Waal's gas when, $b = 0$ and $T = 300 K$ , the $PV$ vs $1 / V$ plot is shown below. The value of the Van der Waal's constant $a (atm {litre}^{2} {mol}^{- 2})$ is:

Question Image

The value of 'b' for steam is 0.0305 L mol-1. The density of liquid water is 0.958 g ml-1 at 100°C. What percentage of volume of water molecules occupy in gaseous phase of water in liquid phase?

Important Questions on States of Matter

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The value of ' $b$ ' for steam is $0.0305 L {mol}^{- 1}$ . The density of liquid water is $0.958 g {ml}^{- 1}$ at $100 ° C$ . What percentage of volume of water molecules occupy in gaseous phase of water in liquid phase?