Kinetic Theory of Gases (NEET Physics): Questions 11 - 15 of 39

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Question number: 11

» Kinetic Theory of Gases » Kinetic Energy and Temperature

MCQ▾

Question

The kinetic energy of one gram molecule of a gas at normal temperature and pressure is (R = 8.31 J/mole - K)

Choices

Choice (4) Response

a.

1.3 ⨯ 10 2 J

b.

0.56 ⨯ 10 4 J

c.

3.4 ⨯ 10 3 J

d.

2.7 ⨯ l0 2 J

Question number: 12

» Kinetic Theory of Gases » Equation of State of a Perfect Gas

MCQ▾

Question

One mole of ideal monoatomic gas (γ=53) is mixed with one mole of diatomic gas (γ=75) . What is γ mix for (γ=CpCv)

Choices

Choice (4) Response

a.

43

b.

3523

c.

2315

d.

1.5

Question number: 13

» Kinetic Theory of Gases » Kinetic Energy and Temperature

MCQ▾

Question

To double the volume of a given mass of an ideal gas at 27ºC keeping the pressure constant, one must raise the temperature in degree centigrade to

Choices

Choice (4) Response

a.

327

b.

54

c.

270

d.

600

Question number: 14

» Kinetic Theory of Gases » Kinetic Energy and Temperature

MCQ▾

Question

Root mean square velocity of a particle is v at pressure P. If pressure is increased two times, then the r. m. s. velocity becomes

Choices

Choice (4) Response

a.

v

b.

0.5 v

c.

3 v

d.

2 v

Question number: 15

» Kinetic Theory of Gases » Kinetic Energy and Temperature

MCQ▾

Question

From the following statements, concerning ideal gas at any given temperature T, select the correct one (s)

(1) The coefficient of volume expansion at constant pressure is same for all ideal gases

(2) In a gaseous mixture, the average translational kinetic energy of the molecules of each component is same

(3) The mean free path of molecules increases with the decrease in pressure

(4) The average translational kinetic energy per molecule of oxygen gas is 3KT (K being Boltzmann constant)

Select the correct answers and mark it according to the following codes:

Choices

Choice (4) Response

a.

1, 2 and 3 are correct

b.

1 and 2 are correct

c.

2 and 4 are correct

d.

1 and 3 are correct

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