At constant temperature, if pressure increases by 1%, the percentage decrease of volume is-

1. 1%

2. 100/101%

3. 1/101%

4. 1/100%

Subtopic:  Gas Laws |
 54%
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When the temperature of 23 ml of dry CO2 gas is increased from 10° to 30°C at a constant pressure of 760 mm, the volume of gas becomes-

1. 7.7 ml

2. 25.5 ml

3. 24.6 ml

4. 69 ml

Subtopic:  Gas Laws |
 72%
From NCERT
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The volume of a gas is 100 ml at 100°C. If the pressure remains constant then the temperature at which the volume becomes 200 ml is-

1. 200°C

2. 473°C

3. 746°C

4. 50°C

Subtopic:  Gas Laws |
 63%
From NCERT
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If 300 ml of a gas at 27°C is cooled to 7°C at constant pressure, its final volume will be:

1. 135 ml 2. 540 ml
3. 350 ml 4. 280 ml
Subtopic:  Gas Laws |
 85%
From NCERT
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A flask containing air (open to atmosphere) is heated from 300 K to 500 K. The percentage of air escaped to the atmosphere is nearly- 

1. 16.6

2. 40

3. 66

4. 20

Subtopic:  Ideal Gas Law |
 59%
From NCERT
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According to Charle’s law, at constant pressure, 100 ml of a given mass of a gas with 10°C rise in temperature will become 1273=0.00366 ,T initial = Zero °C

1. 100.03

2. 99.96

3. 103.66

4. 100.36

Subtopic:  Gas Laws |
 62%
From NCERT
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A sealed tube which can withstand a pressure of 3 atmosphere is filled with air at 27oC and 760 mm pressure. The tube will burst at - 

1. 900°C

2. 627°C

3. 726°C

4. 1173°C

Subtopic:  Gas Laws |
 65%
From NCERT
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The pressure of 2 moles of an ideal gas at 546 K having volume 44.8 L is:

1. 2 atm

2. 3 atm

3. 4 atm

4. 1 atm

Subtopic:  Ideal Gas Law |
 78%
From NCERT
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The number of moles of H2 in 0.224 litre of hydrogen gas at STP (273 K, 1 atm.) is-

1. 1

2. 0.1

3. 0.01

4. 0.001

Subtopic:  Ideal Gas Law |
 78%
From NCERT
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120 g of an ideal gas of molecular weight 40 g mole–1 are confined to a volume of 20 L at 400 K. The pressure of the gas is- 

 (R=0.0821 L atm K1 mole1)

1. 3.90 atm

2. 4.92 atm

3. 6.02 atm

4. 2.96 atm

Subtopic:  Ideal Gas Law |
 86%
From NCERT
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