Van der Waal's equation for a gas is stated as, P = nRT V - nb - a n V 2 . This equation reduces to the perfect gas equation, P = nRT V When,

temperature is sufficiently high and pressure is low.

both temperature and pressure are very low.

both temperature and pressure are very high.

temperature is sufficiently low and pressure is high.

Van der Waal's equation for a gas is stated as, P = nRT V - nb - a n V 2 . This equation reduces to the perfect gas equation, P = nRT V When,

temperature is sufficiently high and pressure is low.

Identify the correct labels of A , B and C in the following graph from the options given below: Root mean square speed V r m s ; most proable speed V m p ; Average speed V a v

A - V mp ; B - V av ; C - V rms

A - V mp ; B - V rms ; C - V av

A - V av ; B - V rms ; C - V mp

A - V rms ; B - V mp ; C - V av

For gaseous state, if most probable speed is denoted by C * , average speed by C ¯ and root mean square speed by C , then for many molecules, what is the ratios of these speeds?

C * : C - : C = 1 : 1 .128 : 1 .225

C * : C - : C = 1 : 1 .225 : 1 .128

C * : C - : C = 1 .225 : 1 .128 : 1

C * : C - : C = 1 .128 : 1 .225 : 1

HARD

JEE Main

IMPORTANT

Earn 100

Van der Waal's equation for a gas is stated as,

$P = \frac{nRT}{V - nb} - a {(\frac{n}{V})}^{2}$ .

This equation reduces to the perfect gas equation, $P = \frac{nRT}{V}$ When,

50% studentsanswered this correctly

Important Questions on States of Matter: Gases and Liquids

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 3 - States of Matter: Gases and Liquids>JEE Main - 8th January 2020 Shift 1>Q 12

A graph of vapour pressure and temperature for three different liquids

X, Y

and

Z

is shown below:
Question Image

The following inferences are made:

(A) X

has higher intermolecular interactions compared to

Y .

(B) X

has lower intermolecular interactions compared to

Y .

(C) Z

has lower intermolecular interactions compared to

Y .

The correct inferences is/are:

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 3 - States of Matter: Gases and Liquids>JEE Main - 8th January 2020 Shift 1>Q 13

The predominant intermolecular forces present in ethyl acetate, a liquid, are:

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 3 - States of Matter: Gases and Liquids>JEE Main - 8th April 2017>Q 14

Among the following, the incorrect statement is:

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 3 - States of Matter: Gases and Liquids>JEE Main - 7th January 2020 Shift 2>Q 15

Identify the correct labels of

A, B

and

C

in the following graph from the options given below:
Question Image

Root mean square speed

(V_{r m s});

most proable speed

(V_{m p});

Average speed

(V_{a v})

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 3 - States of Matter: Gases and Liquids>JEE Main - 7th January 2020 Shift 1>Q 16

35^{o} C,

the vapour pressure of

C S_{2},

512 mmHg

and that of acetone is

144 m m H g .

A solution of

C S_{2}

in acetone has a total vapour pressure of

600 m m H g

. The false statement amongst the following is:

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 3 - States of Matter: Gases and Liquids>JEE Main - 7th January 2020 Shift 1>Q 17

The relative strength of the interionic/ intermolecular forces in a decreasing order is:

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 3 - States of Matter: Gases and Liquids>JEE Main - 7th April 2013>Q 18

For gaseous state, if most probable speed is denoted by

C^{*}

, average speed by

\bar{C}

and root mean square speed by

C

, then for many molecules, what is the ratios of these speeds?

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 3 - States of Matter: Gases and Liquids>JEE Main - 6th April 2014>Q 19

If Z is the compressibility factor, then Van der Waal's equation at low pressure can be written as:

Van der Waal's equation for a gas is stated as, P=nRTV-nb-anV2. This equation reduces to the perfect gas equation, P=nRTV When,

Important Questions on States of Matter: Gases and Liquids

Learn and Prepare for any exam you want !

Van der Waal's equation for a gas is stated as,

$P = \frac{nRT}{V - nb} - a {(\frac{n}{V})}^{2}$ .

This equation reduces to the perfect gas equation, $P = \frac{nRT}{V}$ When,