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CHXI06:STATES OF MATTER

314273 ${CO}_{2}$ gas is easily liquefied than $O_{2}$ because

1

^{'} a^{'} a n d^{'} b^{'}

of

C O_{2} >

'

a

' and 'b' of

O_{2}

2

^{'} a^{'} a n d^{'} b^{'}

of

{CO}_{2} <

'a' and 'b' of

O_{2}

3

^{'} a^{'}

of

{CO}_{2} >

'a' of

O_{2}

; 'b' of

{CO}_{2} <

'

b

' of

O_{2}

4

^{'} a^{'}

of

{CO}_{2} <

'a' of

O_{2}

; 'b' of

{CO}_{2} >

'b' of

{CO}_{2}

Explanation:

Higher the intermolecular attraction ' $a$ ' and lower the co-volume ' $b$ ' easier is the liquefaction of the gas.

CHXI06:STATES OF MATTER

314274 ${NH}_{3}$ gas is liquified more easily than $N_{2}$ . Hence

1 Van der waal's constant

^{'} a^{'} a n d^{'} b^{'}

of

{NH}_{3} >

N_{2}

2 Van der waal's constant

^{'} a^{'} a n d^{'} b^{'}

of

{NH}_{3} <

N_{2}

3

a ({NH}_{3}) > a (N_{2})

but b

({NH}_{3}) < b (N_{2})

4

a ({NH}_{3}) < a (N_{2})

but b

({NH}_{3}) > b (N_{2})

Explanation:

Higher is the value of ' $a$ ', easy to liquefy a gas. The value of ' $b$ ' depends on the molecular volume which is more for $N_{2}$ .

CHXI06:STATES OF MATTER

314275 When an ideal gas undergoes unrestricted expansion

1 Cooling occurs because the molecules lie above inversion temperature

2 No cooling occurs as no attractive interactions exist among molecules

3 Cooling occurs as molecules collide with each other among molecules

4 Cooling does not occur as these do work equal to loss in kinetic energy

CHXI06:STATES OF MATTER

314276 Given Van der Waals constant for ${NH}_{3}, H_{2}, O_{2}$ and ${CO}_{2}$ are respectively 4.17, 0.244, 1.36 and 3.59 , which one of the following gases is most easily liquefied?

1

O_{2}

2

{CO}_{2}

3

H_{2}

4

{NH}_{3}

Explanation:

${NH}_{3}$
Higher the value of ' $a$ ', easier is liquefaction

NEET - 2018

CHXI06:STATES OF MATTER

314273 ${CO}_{2}$ gas is easily liquefied than $O_{2}$ because

1

^{'} a^{'} a n d^{'} b^{'}

of

C O_{2} >

'

a

' and 'b' of

O_{2}

2

^{'} a^{'} a n d^{'} b^{'}

of

{CO}_{2} <

'a' and 'b' of

O_{2}

3

^{'} a^{'}

of

{CO}_{2} >

'a' of

O_{2}

; 'b' of

{CO}_{2} <

'

b

' of

O_{2}

4

^{'} a^{'}

of

{CO}_{2} <

'a' of

O_{2}

; 'b' of

{CO}_{2} >

'b' of

{CO}_{2}

Explanation:

Higher the intermolecular attraction ' $a$ ' and lower the co-volume ' $b$ ' easier is the liquefaction of the gas.

CHXI06:STATES OF MATTER

314274 ${NH}_{3}$ gas is liquified more easily than $N_{2}$ . Hence

1 Van der waal's constant

^{'} a^{'} a n d^{'} b^{'}

of

{NH}_{3} >

N_{2}

2 Van der waal's constant

^{'} a^{'} a n d^{'} b^{'}

of

{NH}_{3} <

N_{2}

3

a ({NH}_{3}) > a (N_{2})

but b

({NH}_{3}) < b (N_{2})

4

a ({NH}_{3}) < a (N_{2})

but b

({NH}_{3}) > b (N_{2})

Explanation:

Higher is the value of ' $a$ ', easy to liquefy a gas. The value of ' $b$ ' depends on the molecular volume which is more for $N_{2}$ .

CHXI06:STATES OF MATTER

314275 When an ideal gas undergoes unrestricted expansion

1 Cooling occurs because the molecules lie above inversion temperature

2 No cooling occurs as no attractive interactions exist among molecules

3 Cooling occurs as molecules collide with each other among molecules

4 Cooling does not occur as these do work equal to loss in kinetic energy

CHXI06:STATES OF MATTER

314276 Given Van der Waals constant for ${NH}_{3}, H_{2}, O_{2}$ and ${CO}_{2}$ are respectively 4.17, 0.244, 1.36 and 3.59 , which one of the following gases is most easily liquefied?

1

O_{2}

2

{CO}_{2}

3

H_{2}

4

{NH}_{3}

Explanation:

${NH}_{3}$
Higher the value of ' $a$ ', easier is liquefaction

NEET - 2018

CHXI06:STATES OF MATTER

314273 ${CO}_{2}$ gas is easily liquefied than $O_{2}$ because

1

^{'} a^{'} a n d^{'} b^{'}

of

C O_{2} >

'

a

' and 'b' of

O_{2}

2

^{'} a^{'} a n d^{'} b^{'}

of

{CO}_{2} <

'a' and 'b' of

O_{2}

3

^{'} a^{'}

of

{CO}_{2} >

'a' of

O_{2}

; 'b' of

{CO}_{2} <

'

b

' of

O_{2}

4

^{'} a^{'}

of

{CO}_{2} <

'a' of

O_{2}

; 'b' of

{CO}_{2} >

'b' of

{CO}_{2}

Explanation:

Higher the intermolecular attraction ' $a$ ' and lower the co-volume ' $b$ ' easier is the liquefaction of the gas.

CHXI06:STATES OF MATTER

314274 ${NH}_{3}$ gas is liquified more easily than $N_{2}$ . Hence

1 Van der waal's constant

^{'} a^{'} a n d^{'} b^{'}

of

{NH}_{3} >

N_{2}

2 Van der waal's constant

^{'} a^{'} a n d^{'} b^{'}

of

{NH}_{3} <

N_{2}

3

a ({NH}_{3}) > a (N_{2})

but b

({NH}_{3}) < b (N_{2})

4

a ({NH}_{3}) < a (N_{2})

but b

({NH}_{3}) > b (N_{2})

Explanation:

Higher is the value of ' $a$ ', easy to liquefy a gas. The value of ' $b$ ' depends on the molecular volume which is more for $N_{2}$ .

CHXI06:STATES OF MATTER

314275 When an ideal gas undergoes unrestricted expansion

1 Cooling occurs because the molecules lie above inversion temperature

2 No cooling occurs as no attractive interactions exist among molecules

3 Cooling occurs as molecules collide with each other among molecules

4 Cooling does not occur as these do work equal to loss in kinetic energy

CHXI06:STATES OF MATTER

314276 Given Van der Waals constant for ${NH}_{3}, H_{2}, O_{2}$ and ${CO}_{2}$ are respectively 4.17, 0.244, 1.36 and 3.59 , which one of the following gases is most easily liquefied?

1

O_{2}

2

{CO}_{2}

3

H_{2}

4

{NH}_{3}

Explanation:

${NH}_{3}$
Higher the value of ' $a$ ', easier is liquefaction

NEET - 2018

CHXI06:STATES OF MATTER

314273 ${CO}_{2}$ gas is easily liquefied than $O_{2}$ because

1

^{'} a^{'} a n d^{'} b^{'}

of

C O_{2} >

'

a

' and 'b' of

O_{2}

2

^{'} a^{'} a n d^{'} b^{'}

of

{CO}_{2} <

'a' and 'b' of

O_{2}

3

^{'} a^{'}

of

{CO}_{2} >

'a' of

O_{2}

; 'b' of

{CO}_{2} <

'

b

' of

O_{2}

4

^{'} a^{'}

of

{CO}_{2} <

'a' of

O_{2}

; 'b' of

{CO}_{2} >

'b' of

{CO}_{2}

Explanation:

Higher the intermolecular attraction ' $a$ ' and lower the co-volume ' $b$ ' easier is the liquefaction of the gas.

CHXI06:STATES OF MATTER

314274 ${NH}_{3}$ gas is liquified more easily than $N_{2}$ . Hence

1 Van der waal's constant

^{'} a^{'} a n d^{'} b^{'}

of

{NH}_{3} >

N_{2}

2 Van der waal's constant

^{'} a^{'} a n d^{'} b^{'}

of

{NH}_{3} <

N_{2}

3

a ({NH}_{3}) > a (N_{2})

but b

({NH}_{3}) < b (N_{2})

4

a ({NH}_{3}) < a (N_{2})

but b

({NH}_{3}) > b (N_{2})

Explanation:

Higher is the value of ' $a$ ', easy to liquefy a gas. The value of ' $b$ ' depends on the molecular volume which is more for $N_{2}$ .

CHXI06:STATES OF MATTER

314275 When an ideal gas undergoes unrestricted expansion

1 Cooling occurs because the molecules lie above inversion temperature

2 No cooling occurs as no attractive interactions exist among molecules

3 Cooling occurs as molecules collide with each other among molecules

4 Cooling does not occur as these do work equal to loss in kinetic energy

CHXI06:STATES OF MATTER

314276 Given Van der Waals constant for ${NH}_{3}, H_{2}, O_{2}$ and ${CO}_{2}$ are respectively 4.17, 0.244, 1.36 and 3.59 , which one of the following gases is most easily liquefied?

1

O_{2}

2

{CO}_{2}

3

H_{2}

4

{NH}_{3}

Explanation:

${NH}_{3}$
Higher the value of ' $a$ ', easier is liquefaction

NEET - 2018