Thermodynamics (NEET Physics): Questions 26 - 29 of 84

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Question number: 26

» Thermodynamics » Thermal Equilibrium

Assertion-Reason▾

Assertion (Ꭺ)

In adiabatic compression, the internal energy and temperature of the system get increased.

Reason (Ꭱ)

The adiabatic compression is a slow process.

Choices

Choice (4) Response
a. Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ
b. Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ
c. Both Ꭺ and Ꭱ are false
d. Ꭺ is true but Ꭱ is false

Question number: 27

» Thermodynamics » Laws of Thermodynamics » Second Law of Thermodynamics

MCQ▾

Question

The pressure in the tire of a car is four times the atmospheric pressure at 200 K. If this tire suddenly bursts, its new temperature will be (γ = 1.4)

Choices

Choice (4) Response
a.

200(4)0.41.4

b.

150(4)1.40.4

c.

400(4)0.41.4

d.

200(4)0.41.4

Question number: 28

» Thermodynamics » Thermal Equilibrium

MCQ▾

Question

For an isothermal expansion of a perfect gas, the value of PP is

Choices

Choice (4) Response
a.

VV

b.

γ2VV

c.

γ12VV

d.

γVV

Question number: 29

» Thermodynamics » Laws of Thermodynamics » Second Law of Thermodynamics

MCQ▾

Question

One mole of an ideal monatomic gas is taken from A to C along the path ABC. The temperature of the gas at A is T 0. For the process ABC –

System of gas molecule – path ABC

System of Gas Molecule – Path ABC

In above figure we show that one mole of an ideal monatomic gas is taken from A to C along the path ABC

(1) Work done by the gas is RT0

(2) Change in internal energy of the gas is 112RT0

(3) Heat absorbed by the gas is 112RT0

(4) Heat absorbed by the gas is 132RT0

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

Choices

Choice (4) Response
a.

2 and 4 are correct

b.

1 and 2 ate correct

c.

1, 2 and 3 are correct

d.

1 and 3 are correct

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