Thermodynamics-Thermal Equilibrium (NEET Physics): Questions 1 - 5 of 16

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Question number: 1

» Thermodynamics » Thermal Equilibrium

MCQ▾

Question

A sample of gas expands from volume V 1 to V 2. The amount of work done by the gas is greatest when the expansion is

Choices

Choice (4) Response

a.

Adiabatic

b.

Isobaric

c.

Equal in all cases

d.

Isothermal

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: 2 (1 of 1 Based on Passage) Show Passage

» Thermodynamics » Thermal Equilibrium

MCQ▾

Question

The average molar heat capacity of the gas in process ABC is

Choices

Choice (4) Response

a.

QnT0

b.

Q3nT0

c.

2QnT0

d.

Q2nT0

Question number: 3

» Thermodynamics » Thermal Equilibrium

Assertion-Reason▾

Assertion (Ꭺ)

The isothermal curves intersect each other at a certain point.

Reason (Ꭱ)

The isothermal change takes place slow; so the isothermal curves have very little slope.

Choices

Choice (4) Response

a.

Ꭺ is false but Ꭱ is true

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.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

Question number: 4

» Thermodynamics » Thermal Equilibrium

MCQ▾

Question

When heat is given to a gas in an isothermal change, the result will be

Choices

Choice (4) Response

a.

External work done

b.

Increase in internal energy

c.

External work done and a/so rise in temp.

d.

Rise in temperature

Question number: 5

» 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

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