ECAT Pre General Science Physics Chapter 11 MCQ Test With Answer

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

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

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ECAT Pre General Science Physics Chapter 11 Heat & Thermodynamics

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Question # 1

If water in a closed bottle is taken up to the moon and opened, the water gets

Question # 2

Pressure of a gas at constant volume is proportion to

Question # 3

If the distance between two charges is doubled, the force between them will become:

Question # 4

A carnot cycle consists of

Question # 5

Pressure applied at any point of gas at rest is transmitted equally to all parts of the gas. This is the statement of:

Question # 6

If the formula PV = nRT, n denotes:

Question # 7

In an ideal gas, the molecules have:

Question # 8

Rice takes longest to cook

Question # 9

When two objects are rubbed together, their internal energy

Question # 10

Which of the following is not an assumption of kinetic energy

Question # 11

First law of thermodynamic is special case of

Question # 12

The example of irreversible process is

Question # 13

Rate of diffusion is

Question # 14

At O° K which of the following properties of a gas will be zero?

Question # 15

The product of the pressure and volume of an ideal gas is

Question # 16

The value of E0in coulomb's law is:

Question # 17

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

Question # 18

The motion of molecules in gases is:

Question # 19

The example of reversible process is

Question # 20

Electromagnetic waves emitted by hot bodies are called:

Question # 21

If a process cannot be retraced in the backward direction by reversing the controlling factors, it is

Question # 22

An isochoric process is one which take place at

Question # 23

The pressure exerted by the gas is

Question # 24

Specific heat at constant pressure is greater than the specific heat at constant volume because

Question # 25

The behaviour of gases is well accounted by the kinetic theory based on

Question # 26

Which of the following does not have the same units:

Question # 27

When heat is removed from the system

Question # 28

Which of the following is a state variable

Question # 29

The temperature of gas is produced by

Question # 30

If a liquid is heated in weightlessness, the heat is transmitted through

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ECAT Physics Chapter 11 Important MCQ's

Sr.# Question Answer
1 On the compression stroke of the petrol engine, the inlet value is closed and the mixture is compressed
A. adiabatically
B. isothermally
C. isochorcally
D. isobarically
2 The internal energy of an ideal gas system is generally the
A. translational K.E of molecules
B. vibrational K.E of molecules
C. rotational K.E of molecules
D. all of them
3 The curve representing an isothermal process is called
A. adiabat
B. isotherm
C. fixed temperature
D. none of them
4 The product of the pressure and volume of an ideal gas is
A. A constant
B. Approximately equal to the universal gas constant
C. Directly proportional to its temperature
D. Inversely proportional to its temperature
5 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
6 The example of irreversible process is
A. slowly liquification
B. slowly evaporation
C. an explosion
D. all of them
7 Generally a temperature scale is established by using certain physical properties of a material which varies
A. nonlinearly with temperature
B. linearly with temperature
C. either of them
D. none of them
8 The number of translation degress of freedom for a diatomic gas is
A. 2
B. 3
C. 5
D. 6
9 Electromagnetic waves emitted by hot bodies are called:
A. Photoelectrons
B. Alpha rays
C. Thermal radiation
D. None of these
10 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

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