NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 1559 - 1563 of 2184

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Question number: 1559

» Kinetic Theory of Gases » Kinetic Energy and Temperature

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MCQ▾

Question

The pressure P, volume V and temperature T of a gas in the jar A and the other gas in the jar B at pressure 2 P, volume and temperature 2T, then the ratio of the number of molecules in the jar A and B will be

Choices

Choice (4) Response

a.

1: 2

b.

4: 1

c.

2: 1

d.

1: 1

Question number: 1560

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

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MCQ▾

Question

The relation between the gas pressure P and average kinetic energy per unit volume E is

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1561

» Kinetic Theory of Gases » Kinetic Energy and Temperature

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MCQ▾

Question

7 calories of heat are required to raise the temperature 2 moles of an ideal gas at constant pressure from 30°C to 35°C. The amount of heat required to raise the temperature of same gas through the same range (30° C to 35° C) at constant volume (R = 2 Cal/mole K)

Choices

Choice (4) Response

a.

70 Cal

b.

30 Cal

c.

50 Cal

d.

90 Cal

Question number: 1562

» Kinetic Theory of Gases » Kinetic Energy and Temperature

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MCQ▾

Question

A vessel contains a mixture of one mole of oxygen and two moles of nitrogen at 300 K. The ratio of the average rotational kinetic energy per N 1 molecule to that per N 2 molecule is

Choices

Choice (4) Response

a.

2: 1

b.

Depends on the moments of inertia of the two molecules

c.

1: 2

d.

1: 1

Question number: 1563

» Thermodynamics » Thermal Equilibrium

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MCQ▾

Question

Two Carnot engines A and B are operated in succession. The first one, A receives heat from a source at r 1 = 500 and rejects to sink at T 2 K. The second engine B receives heat rejected by the first engine and rejects to another sink at r 3 =300K. If the work outputs of two engines are equal, then the value of T 2 will be

Choices

Choice (4) Response

a.

100K

b.

550K

c.

400K

d.

700 K