Pradeep's Chemistry Vol 1>Chapter 5 - States of Matter: Gases and Liquids>PROBLEMS FOR PRACTICE>Q 2

EASY

11th CBSE

IMPORTANT

Earn 100

Calculate (i) root mean square speed (ii) average speed and (iii) most probable speed of ${CO}_{2}$ molecules at $700 K$ .

Important Questions on States of Matter: Gases and Liquids

EASY

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 5 - States of Matter: Gases and Liquids>PROBLEMS FOR PRACTICE>Q 3

A sample of a gas contains

15

molecules with a speed of

= 514.33 {ms}^{- 1}

,

25

molecules with a speed of

5 m / s

and

30

molecules with a speed of

8 m / s

. Calculate root mean square speed of these molecules.

EASY

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 5 - States of Matter: Gases and Liquids>PROBLEMS FOR PRACTICE>Q 4

Calculate the temperature at which the average speed of oxygen equals that of hydrogen at

20 K

.

EASY

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 5 - States of Matter: Gases and Liquids>PROBLEMS FOR PRACTICE>Q 5

Calculate the temperatures at which the root mean square speed, average speed and most probable speed of oxygen gas are all equal to

1500 m / s

.

EASY

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 5 - States of Matter: Gases and Liquids>PROBLEMS FOR PRACTICE>Q 1

Calculate the pressure exerted by

10.2 g

of

{NH}_{3}

in a

3.0

{dm}^{3}

vessel at

25 ° C

(a) using ideal gas equation (b) using Van der Waals equation. The Van der Waals constants are :

a = 4.17 atm

{mol}^{- 2}

,

b = 0.0371

{dm}^{3} {mol}^{- 1}

.

MEDIUM

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 5 - States of Matter: Gases and Liquids>PROBLEMS FOR PRACTICE>Q 2

180 g

of steam is contained in a vessel of

25 L

capacity under a pressure of

50 atm

. Calculate the temperature of the steam. Given that for water vapour,

a = 5.46

bar L^{2} {mol}^{- 2}

and

b = 0.031

L {mol}^{- 1}

.

MEDIUM

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 5 - States of Matter: Gases and Liquids>TEST YOUR GRIP>Q 1

When two ice cubes are pressed over each other, they unite to form one cube which of the following force is responsible to hold them together?

MEDIUM

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 5 - States of Matter: Gases and Liquids>TEST YOUR GRIP>Q 2

Slope of the plot between

PV

and

P

at constant temperature is

MEDIUM

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 5 - States of Matter: Gases and Liquids>TEST YOUR GRIP>Q 3

Which of the following diagram correctly describes the behaviour of a fixed mass of an ideal gas?