NEET (National Eligibility cum Medical Entrance Test) Physics: Questions 1546 - 1551 of 2142

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Question number: 1546

» Thermodynamics » Concept of Temperature

MCQ▾

Question

Work done by 0.2 mole of a gas at 30°C to double its volume at constant pressure is,

(R = 2 cal mol °K)

Choices

Choice (4) Response

a.

600 cal

b.

154 cal

c.

121.2 cal

d.

160 cal

Passage

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

V-T graph of a process of monoatomic ideal gas is as shown in figure.

Graph of volume vs pressure square depicts ABCD

Graph of Volume vs Pressure Square Depicts ABCD

In above figure expansion of monoatomic molecule is shown.

Question number: 1547 (1 of 3 Based on Passage) Show Passage

» Thermodynamics » Laws of Thermodynamics » Second Law of Thermodynamics

MCQ▾

Question

Sum of work done by the gas in process ABCD is –

Choices

Choice (4) Response

a.

negative

b.

data is insufficient

c.

zero

d.

positive

Question number: 1548 (2 of 3 Based on Passage) Show Passage

» Thermodynamics » Laws of Thermodynamics » Second Law of Thermodynamics

MCQ▾

Question

Heat is supplied to the gas in process (s) -

Choices

Choice (4) Response

a.

DA, AB and DC

b.

AB and BC only

c.

DA only

d.

DA and AB only

Question number: 1549 (3 of 3 Based on Passage) Show Passage

» Thermodynamics » Laws of Thermodynamics » Second Law of Thermodynamics

MCQ▾

Question

Change in internal energy of the gas is zero in process (s) –

Choices

Choice (4) Response

a.

DA and BC only

b.

DA, AB and BC

c.

DA only

d.

DA and AB only

Question number: 1550

» Thermodynamics » Laws of Thermodynamics » Second Law of Thermodynamics

Assertion-Reason▾

Assertion (Ꭺ)

It is not possible for a system, unaided by external agency to transfer heat from a body at low temperature to another body at higher temperature.

Reason (Ꭱ)

According to Clauses statement, A process is possible whose sole result is the transfer heat from a cooled object to a hotter object.

Choices

Choice (4) Response

a.

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

b.

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

c.

Ꭺ is true but Ꭱ is false

d.

Both Ꭺ and Ꭱ are false

Question number: 1551

» Atoms and Nuclei » Mass-Energy Relation

MCQ▾

Question

If mass equivalent to one mass of proton is completely converted into energy then determine the energy produced?

Choices

Choice (4) Response

a.

431.49 MeV

b.

931.49 MeV

c.

911.49 MeV

d.

731.49 MeV

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