Kinetic Theory of Gases (BITSAT Physics): Questions 1 - 3 of 3

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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

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