Thermodynamics (BITSAT Physics): Questions 1 - 7 of 9

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Question number: 1

» Thermodynamics » Concept of Temperature

MCQ▾

Question

Coefficient of performance of an ideal refrigerator working between temperatures T1andT2(T1>T2) is –

Choices

Choice (4) Response

a.

β=T2T1T2

b.

β=T1T1T2

c.

β=T1T1+T2

d.

β=T2T1+T2

Question number: 2

» Thermodynamics » Concept of Temperature

MCQ▾

Question

Equation for the change of state was given by –

Choices

Choice (4) Response

a.

Newton

b.

Clausius

c.

Joules

d.

Clausius – Clapeyron

Question number: 3

» Thermodynamics » Laws of Thermodynamics » First Law of Thermodynamics

MCQ▾

Question

The evaporation of a liquid from its surface is based on –

Choices

Choice (4) Response

a.

Bernoulli’s law

b.

Joule’s law

c.

Thomson’s law

d.

Stefan’s law

Question number: 4

» Thermodynamics » Concept of Temperature

MCQ▾

Question

16g of oxygen at 37°C is mixed with 14g of nitrogen at 27°C, the temperature of the mixture will be –

Choices

Choice (4) Response

a.

30.5°C

b.

37°C

c.

27°C

d.

32°C

Question number: 5

» Thermodynamics » Work in Thermodynamic Process and PV Diagrams

MCQ▾

Question

A soap bubble has radius r and volume V . If the excess pressure inside the bubble is P . then PV is proportional to –

Choices

Choice (4) Response

a.

r

b.

r1

c.

r2

d.

r3

Question number: 6

» Thermodynamics » Thermodynamic Processes

MCQ▾

Question

When there is not heat change from surrounding in a system, then the process is related with –

Choices

Choice (4) Response

a.

Adiabatic

b.

Isothermal

c.

Isobaric

d.

Isochoric

Question number: 7

» Thermodynamics » Laws of Thermodynamics » First Law of Thermodynamics

MCQ▾

Question

When the amount of work done is 333cal and change in internal energy is 167cal , then the heat supplied is

Choices

Choice (4) Response

a.

100cal

b.

500cal

c.

700cal

d.

300cal

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