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

The ideal gas law is

Question # 2

If the formula PV = nRT, n denotes:

Question # 3

The number of translation degress of freedom for a diatomic gas is

Question # 4

When two objects are rubbed together, their internal energy

Question # 5

10 c.c. each of oxygen and hydrogen are kept in separate flasks. Then which of the following relations is correct?

Question # 6

The second law of thermodynamics is concerned with the circumstances in which

Question # 7

If the ratio of densities of two gases is 1:4, then the ratio of their rates of diffusion into one another is

Question # 8

Truth of kinetic energy is confirmed by:

Question # 9

In all natural processes where heat flows from one system to another, there is always a net

Question # 10

According to the second law, which is must to produce work

Question # 11

Gas constant per molecule is called:

Question # 12

Triple point of water is

Question # 13

R.M.S velocity of a particle is V at pressure P. If pressure increases by two times, then R.M.S velocity becomes

Question # 14

The only significant motion possessed by the mono-atomic gas represented is:

Question # 15

In the formula P = N0KT, N0denotes:

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ECAT Physics Chapter 11 Important MCQ's

Sr.# Question Answer
1 At absolute temperature, the kinetic energy of the molecules
A. Becomes zero
B. Becomes maximum
C. Becomes minimum
D. Remain constant
2 Boyle's law is applicable in
A. Isochoric process
B. Isothermal process
C. Isobaric process
D. Isotonic process
3 The earliest heat engine was
A. petrol engine
B. diesel engine
C. electric engine
D. steam engine
4 The ideal gas law is
A. P = nRT
B. V = nRT
C. PV =RT
D. PV =nRT
5 The only significant motion possessed by the mono-atomic gas represented is:
A. Translatory
B. Rotatory
C. Vibratory
D. None of these
6 Adiabatic change occurs when the gas
A. expands
B. compressed
C. expands or compressed
D. expands or compressed rapidly
7 In a heat engine, heat is supplied by the
A. cold reservoir
B. sink
C. hot reservoir
D. none of them
8 The behaviour of gases is well accounted by the kinetic theory based on
A. microscopic approach
B. macroscopic approach
C. both of them
D. none of them
9 An irreversible heat flow from a hot to cold substances of a system, causes the disorder to
A. decrease
B. remains the same
C. increase
D. any one of them
10 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

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  • Arsal

    Arsal

    31 Jan 2018

    Entry test is a good thing

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