Kinetic Theory of Gases (BITSAT Physics): Questions 1 - 5 of 5

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Question number: 1

» Kinetic Theory of Gases » Kinetic Theory of Gases

MCQ▾

Question

The dew point and atmospheric temperature on a particular day is found to be 18°C and 25°C . If saturation vapor pressure at 18°C and 25°C be 15.5mm and 25.7mm of Hg , then its relative humidity is –

Choices

Choice (4) Response

a.

30.0%

b.

Not possible to calculate

c.

90%

d.

60.3 %

Question number: 2

» Kinetic Theory of Gases » Heat Capacities and Its Relations

MCQ▾

Question

If the ratio of specific heat of a gas at constant pressure to that at constant volume is γ, the change in internal energy of one mole of a gas when the volume changes from Vto2V at constant pressure P is –

Choices

Choice (4) Response

a.

γPVr1

b.

PV

c.

PVγ1

d.

Rγ1

Question number: 3

» Kinetic Theory of Gases » Kinetic Energy and Temperature

MCQ▾

Question

The kinetic energy per gram molecule of a gas at normal temperature and pressure is (R=8.31JmoleK)

Choices

Choice (4) Response

a.

0.56×104J

b.

1.3×102J

c.

2.7×102J

d.

3.74×103J

Question number: 4

» Kinetic Theory of Gases » Kinetic Theory of Gases

MCQ▾

Question

Air is blown through a hole on a closed pipe containing liquid. Then the pressure will –

Choices

Choice (4) Response

a.

Increase in all directions

b.

Increase on sides

c.

Never increases.

d.

Increase downwards

Question number: 5

» Kinetic Theory of Gases » Kinetic Theory of Gases

MCQ▾

Question

A tyre kept outside in sunlight bursts off after sometime because of –

Choices

Choice (4) Response

a.

Increase in pressure

b.

Increase in volume

c.

None of the above

d.

Question does not provide sufficient data or is vague

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