ECAT Pre Computer Science Chapter 11 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 11 Heat & Thermodynamics

Try The MCQ's Test For ECAT Physics Chapter 11 Heat & Thermodynamics

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ECAT Physics Chapter 11 Heat & Thermodynamics

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Question # 1

Carnot heat engine only used

Question # 2

In which process the condition for the application of Boyle's law on the gas is fulfilled

Question # 3

For the working of a heat engine, there must be

Question # 4

At absolute temperature, the kinetic energy of the molecules

Question # 5

The Boltzman constant has the value

Question # 6

Since the absolute scale is independent of the property of the working substance, hence, can be applied at

Question # 7

At the constant temperature, if the value of a given mass of a gas is double, then the density of gas becomes:

Question # 8

The internal energy of an ideal gas system is generally the

Question # 9

It is impossible to devise a processes which may convert heat, extracted from a single reservoir, entirely into work without leaving any change in the working system. This is the statement of

Question # 10

Pressure exerted by a gas is

Question # 11

The disorder in the system increases due to the

Question # 12

A gas which strictly obeys the gas laws under all conditions of temperature and pressure is called:

Question # 13

When the temperature of source and sink of a heat engine become equal entropy change will be

Question # 14

The example of reversible process is

Question # 15

The motion of molecules in gases is:

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ECAT Physics Chapter 11 Important MCQ's

Sr.# Question Answer
1 Pressure may be define as _______ per second per unit area:
A. Change in force
B. Change in momentum
C. Change in energy
D. Work done
2 If the formula PV = nRT, n denotes:
A. Number of molecules per unit volume
B. Number of moles
C. Number of molecules
D. None of these
3 It is impossible to devise a processes which may convert heat, extracted from a single reservoir, entirely into work without leaving any change in the working system. This is the statement of
A. Clausius statement of second law
B. Kelvin'sstatement of second law
C. Clausius statement of first law
D. Kelvin's statement of first law
4 Good absorbers of heat are
A. Poor emitters
B. Non emitters
C. Good emitters
D. Highly polarized
5 Sadi carnot described an ideal heat engine in
A. 1820
B. 1840
C. 1860
D. 1880
6 In the formula P = N0KT, N0denotes:
A. Number of molecules per unit per volume
B. Number of moles
C. Number of molecules
D. None of these
7 In the reverse process, the working substance passes through the same stages as in the direct process and
A. thermal effects at each stage are exactly reversed
B. mechanical effects at each stage are exactly reversed
C. thermal and mechanical effects at each stage remain the same
D. thermal and mechanical effects at each stage are exactly reversed
8 The coefficient of linear expansion of iron is 0.000011 per°K. An iron rod is 10 metre long at 27°C. The length of the rod will be decreased by 1.1 mm when the temperature of the rod changes to
A. 0°C
B. 10°C
C. 17°C
D. 20°C
9 At O° K which of the following properties of a gas will be zero?
A. Kinetic energy
B. Potential energy
C. Vibrational energy
D. Density
10 When heat is removed from the system
A. negative
B. positive
C. zero
D. any one of them

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  • Arsal

    Arsal

    31 Jan 2018

    Entry test is a good thing

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