Thermodynamics-Laws of Thermodynamics (NEET Physics): Questions 6 - 9 of 30

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Question number: 6

» Thermodynamics » Laws of Thermodynamics » First Law of Thermodynamics

MCQ▾

Question

During the melting of a slab of ice at 273 K and one atmospheric pressure

(1) Positive work is done on the ice-water system by the atmosphere

(2) Positive work is done by ice-water system on the atmosphere

(3) The internal energy of the ice-water system increases

(4) The internal energy of the ice-water system decreases

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

Choices

Choice (4) Response

a.

1, 2 and 3 are correct

b.

2 and 4 are correct

c.

1 and 2 ate correct

d.

1 and 3 are correct

Passage

Read the passage given below and answer the questions that follows:

In the figure n mole of a monoatomic ideal gas undergo the process ABC as shown in the P-V diagram. The process AB is isothermal and BC is isochoric. The temperature of the gas at A is T 0. Total heat given to the gas during the process ABC is measured to be Q.

Graph of pressure vs volume (2V and 6V)

Graph of Pressure vs Volume (2V and 6V)

In above figure we show expansion of monoatomic molecule with change in pressure.

Question number: 7 (1 of 2 Based on Passage) Show Passage

» Thermodynamics » Laws of Thermodynamics » Second Law of Thermodynamics

MCQ▾

Question

Temperature of the gas at C is equal to

Choices

Choice (4) Response

a.

6T 0

b.

T 0

c.

3T 0

d.

2T 0

Question number: 8 (2 of 2 Based on Passage) Show Passage

» Thermodynamics » Laws of Thermodynamics » First Law of Thermodynamics

MCQ▾

Question

Heat absorbed by the gas in the process BC

Choices

Choice (4) Response

a.

nRT 0

b.

6nRT 0

c.

2nRT 0

d.

3nRT 0

Question number: 9

» Thermodynamics » Laws of Thermodynamics » First Law of Thermodynamics

MCQ▾

Question

During the melting of a slab of ice at 273 K and one atmospheric pressure

(1) Positive work is done on the ice-water system by the atmosphere

(2) Positive work is done by ice-water system on the atmosphere

(3) The internal energy of the ice-water system increases

(4) The internal energy of the ice-water system decreases

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 ate correct

c.

2 and 4 are correct

d.

1 and 3 are correct

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