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 |
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A plot of volume versus temperature (T) for a gas at constant pressure is a straight line passing through the origin. The plots at different values of pressure are shown in the figure given below.

The correct order of pressure is -

Temperature (K)

1. ${\mathrm{p}}_{1}>{\mathrm{p}}_{2}>{\mathrm{p}}_{3}>{\mathrm{p}}_{4}$

2. ${\mathrm{p}}_{1}={\mathrm{p}}_{2}={\mathrm{p}}_{3}={\mathrm{p}}_{4}$

3. ${\mathrm{p}}_{1}<{\mathrm{p}}_{2}<{\mathrm{p}}_{3}<{\mathrm{p}}_{4}$

4. ${\mathrm{p}}_{1}<{\mathrm{p}}_{2}={\mathrm{p}}_{3}<{\mathrm{p}}_{4}$

Subtopic:  Gas Laws |
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At 0°C, the density of a certain oxide of a gas at 2 bar is the same as that of dinitrogen at 5 bar.

The molecular mass of the oxide would be -

1. 35 g/mol

2. 45 g/mol

3. 70 g/mol

4. 60 g/mol

Subtopic:  Gas Laws |
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The plots of different values of pressure versus temperature are shown in the given figure. The correct order of volume for the following plot is-

1. V4 < V3 < V2 < V1

2. V4 > V3 < V2 > V1

3. V4 > V3 > V2 > V1

4. V4 > V3 > V2 < V1

Subtopic:  Gas Laws |
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The variation of pressure with the volume of the gas at different temperatures can be
graphically represented as per the following graph:

If the temperature increases from 200K to 400K (at constant pressure), the volume of a
gas would-

1. Increase

2. Decrease

3. Remain constant

4. 1st decreases then increases

Subtopic:  Gas Laws |
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The density of methane at 2.0 atmosphere pressure and 27°C is-

1. 0.13 gL–1

2. 0.26 gL–1

3. 1.30 gL–1

4. 2.60 gL–1

Subtopic:  Gas Laws |
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The deviation of a gas from ideal behavior is expected to be minimum at -

1. 350 K and 3 atm

2. 550 K and 1 atm

3. 250 K and 4 atm

4. 450 K and 2 atm

Subtopic:  Gas Laws |
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The curve that can not represent Boyle's law is -

1.

2.

3.

4.

Subtopic:  Gas Laws |
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