NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 1463 - 1467 of 2184

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Question number: 1463

» Kinetic Theory of Gases » Kinetic Energy and Temperature

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MCQ▾

Question

A flask is filled with 13 gm of an ideal gas at 27°C and its temperature is raised to 52°C. The mass of the gas that has to be released to maintain the temperature of the gas in the flask at 52°C and the pressure remaining the same is

Choices

Choice (4) Response

a.

2.0 g

b.

1.5 g

c.

1.0 g

d.

2.5 g

Question number: 1464

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

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MCQ▾

Question

The value of the gas constant (R) calculated from the perfect gas equation is 8.32 Joule/gm mole K, whereas in value calculated from the knowledge of C P and C V of the gas is 1.58 Cal/gm mole K. From this data, the value of J is

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1465

» Kinetic Theory of Gases » Kinetic Energy and Temperature

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Assertion-Reason▾

Question

Assertion (Ꭺ)

Maxwell speed distribution graph is asymmetric about most probable speed.

Reason (Ꭱ)

rms speed of ideal gas depends upon its type (monoatomic, diatomic and polyatomic).

Choices

Choice (4) Response

a.

Ꭺ is true but Ꭱ is false

b.

Both Ꭺ and Ꭱ are false

c.

Ꭺ is false but Ꭱ is true

d.

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

Question number: 1466

» Thermodynamics » Concept of Temperature

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MCQ▾

Question

The efficiency of Carnot’s engine operating between reservoirs, maintained at temperatures 27 C and -123 C,

Choices

Choice (4) Response

a.

0.75%

b.

24%

c.

0.4%

d.

50%

Question number: 1467

» Thermodynamics » Carnot Engine and Its Efficiency

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MCQ▾

Question

The temperature of sink of Carnot engine is 27°C and Efficiency of engine is 50%. Then temperature of source

Choices

Choice (4) Response

a.

227ºC

b.

127ºC

c.

27°C

d.

327°C