Kinetic Theory of Gases (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 25 - 29 of 40

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Question number: 25

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

MCQ▾

Question

Gas at a pressure P 0 is contained in a vessel. If the mass of all the molecules are halved and their speeds an doubled, the resulting pressure p will be equal to

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 26

» Kinetic Theory of Gases » Kinetic Energy and Temperature

MCQ▾

Question

The kinetic energy of one gram molecule of a gas at 70 0 C temperature and normal pressure is (R = 8.31 J/mole- K)

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 27

» Kinetic Theory of Gases » Kinetic Energy and Temperature

MCQ▾

Question

If pressure of a gas contained in a closed vessel is increased 0.2 % when heated by 1°C, the initial temperature must be

Choices

Choice (4) Response

a.

25°C

b.

250 K

c.

500 K

d.

None of the above

Question number: 28

» Kinetic Theory of Gases » Kinetic Energy and Temperature

Assertion-Reason▾

Assertion (Ꭺ)

Equal masses of helium and oxygen gases are given equal quantities of heat. There will be a greater rise in the temperature of helium compared to that of oxygen.

Reason (Ꭱ)

The molecular weight of oxygen is more than the molecular weight of helium.

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are false

b.

Ꭺ is true but Ꭱ is false

c.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

d.

Ꭺ is false but Ꭱ is true

Question number: 29

» 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.

627

b.

327

c.

54

d.

600

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