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

00:00
Question # 1

One kilogram of different substances contain

Question # 2

Heat travels through vacuum by

Question # 3

The Boltzman constant has the value

Question # 4

The absolute temperature of the tripple point of water is

Question # 5

The nature of thermal radiation is similar to:

Question # 6

Which of the following is not an assumption of kinetic energy

Question # 7

When heat is removed from the system

Question # 8

The efficiency of diesel engine is

Question # 9

The percentage of available heat energy converted into work by a diesel engine is roughly

Question # 10

The rate of change of momentum of a molecule is equal to:

Question # 11

The work done on the system by the environment is considered as

Question # 12

First law of thermodynamic is special case of

Question # 13

At constant volume temperature is increased. Then

Question # 14

Which of the following is a state variable

Question # 15

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

Question # 16

A heat engine is that which converts

Question # 17

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

Question # 18

A process in which no heat enters or leaves the system is called

Question # 19

We cannot utilize the heat contents of oceans and atmosphere because

Question # 20

Rate of diffusion is

Question # 21

On colliding in a closed container, the gas molecules

Question # 22

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

Question # 23

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

Question # 24

Which of the following is not an example of adiabatic process

Question # 25

The volume of a gas will be double of what it is at 0°C (pressure remaining constant) at

Question # 26

A carnot cycle consists of

Question # 27

Generally a temperature scale is established by

Question # 28

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

Question # 29

Pressure exerted by a gas is

Question # 30

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

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ECAT Physics Chapter 11 Important MCQ's

Sr.# Question Answer
1 The rate of change of momentum of a molecule is equal to:
A. Pressure
B. Work
C. Density
D. Force
2 A process in which no heat enters or leaves the system is called
A. isochoric process
B. isothermal process
C. adiabatic process
D. none of them
3 Sadi carnot described an ideal heat engine in
A. 1820
B. 1840
C. 1860
D. 1880
4 For making cooking utensils, which of the following pairs of properties is most suited?
A. Low specific heat and high conductivity
B. Low specific heat and low conductivity
C. High specific heat and high conductivity
D. High specific heat and low conductivity
5 The state in which ice, water and vapour coexists in equilibrium is called
A. zero degree celsius
B. zero degree fahrenheit
C. absolute zero
D. 373 K
6 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
7 The heat required to raise the temperature of one mole of the gas through 1 K at constant volume is called
A. heat capacity
B. specific heat capacity
C. molar specific heat
D. molar specific heat at constant volume
8 A process is a reversible process, if the entropy of the system
A. increases
B. decreases
C. remains constant
D. none of them
9 The ideal gas law is
A. P = nRT
B. V = nRT
C. PV =RT
D. PV =nRT
10 In thermodynamics, internal energy is the function of
A. temperature
B. pressure
C. state
D. none of them

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