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

  • Total Questions30

  • Time Allowed30

Start Test Download PDF

ECAT Pre General Science Physics Chapter 11 Heat & Thermodynamics

00:00
Question # 1

Sadi carnot described an ideal heat engine in

Question # 2

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 # 3

If 42 J heat is transferred to the system and the work done by the system is 32 J then what will be the change in internal energy

Question # 4

Hotness and coldness of an object is represented in terms:

Question # 5

The example of irreversible process is

Question # 6

A gas is compressed adiabatically till its temperature is double. The ratio of its final volume to initial volume will be

Question # 7

In an adiabatic process the work is done at the expense of the

Question # 8

We cannot utilize the heat contents of oceans and atmosphere because

Question # 9

The volume of universal gas constant R is:

Question # 10

The absolute temperature of the tripple point of water is

Question # 11

At constant volume temperature is increased. Then

Question # 12

The internal energy of a system does not depend upon the

Question # 13

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

Question # 14

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

Question # 15

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

Question # 16

A process is a reversible process, if the entropy of the system

Question # 17

A process which can be retraced in exactly reverse order, without producing any change in the surroundings is called

Question # 18

At constant temperature, on increasing the pressure of a gas by 5%, its volume. The final temperature of the gas will be

Question # 19

The relationship between Boltzmann constant k with R and NAis given as:

Question # 20

Absolute temperature can be calculated by

Question # 21

The heat required to raise the temperature of one mole of the substance through 1 K is called

Question # 22

The nature of thermal radiation is similar to:

Question # 23

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

Question # 24

What temperature is the same on Celsius scale as well as on Fahrenheit scale?

Question # 25

Absolute zero is considered as that temperature at which:

Question # 26

The state in which ice, water and vapour coexists in equilibrium is called

Question # 27

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

Question # 28

If a molecule with momentum mv strikes a wall and rebound then the change in momentum will be:

Question # 29

Energy gas behaves like an ideal gast at

Question # 30

Two metal rods A and B have their initial lengths in the ratio 2 : 3 and coefficients of linear expansion in the ratio 4 : 3. When they are heated through same temperature difference the ratio of their linear expansion is

Submit

Prepare Complete Set Wise ECAT Pre General Science Physics Chapter 11 Heat & Thermodynamics MCQs Online With Answers


Topic Test

00:00
Submit

Top Scorers Of ECAT Pre General Science Physics Chapter 11 Heat & Thermodynamics MCQ`s Test

  • M
    Malik Farhan 26 - Jan - 2019 08 Min 09 Sec 80/120
  • I
    Israr Ahmed 09 - Mar - 2024 17 Min 46 Sec 60/120
  • W
    Waleed Ahmed 24 - Feb - 2023 05 Min 43 Sec 50/120
  • M
    Maliha afridi 25 - Oct - 2018 11 Min 47 Sec 50/120
  • G
    Gimi tunio 30 - Jun - 2018 26 Min 00 Sec 45/120
  • M
    Malik Farhan 23 - May - 2021 07 Min 14 Sec 35/120
  • F
    Farhan Sial 30 - Aug - 2018 09 Min 36 Sec 30/120
  • A
    Ahmed Ali Shah 07 - Nov - 2023 01 Min 01 Sec 25/120
  • K
    kamal deep 17 - Jun - 2023 02 Min 55 Sec 20/120
  • H
    hamza abid 27 - Jan - 2022 10 Min 50 Sec 20/120
  • M
    Mohsin rajput Rajput 21 - Sep - 2025 06 Min 38 Sec 9/30
  • F
    Frankie 09 - Sep - 2022 01 Min 29 Sec 0/120

ECAT Physics Chapter 11 Important MCQ's

Sr.# Question Answer
1 Hotness and coldness of an object is represented in terms:
A. Heat
B. Temperature
C. Chemical energy
D. None of these
2 A gas which strictly obeys the gas laws under all conditions of temperature and pressure is called:
A. Ideal gas
B. Inert gas
C. Real gas
D. None of these
3 In an adiabatic process the work is done at the expense of the
A. energy supplied to the system
B. energy gained from the surroundings
C. internal energy
D. none of them
4 If water in a closed bottle is taken up to the moon and opened, the water gets
A. Freeze
B. Boiled
C. Dissociated into O2and H2
D. Evaporated
5 A process is a reversible process, if the entropy of the system
A. increases
B. decreases
C. remains constant
D. none of them
6 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
7
During the whole carnot cycle
A. Thermal equilibrium is maintained
B. mechanical equilibrium is maintained
C. both the thermal and mechanical equilibriumis maintained
D. both the thermal and mechanical equilibrium is not maintained
8 Which quantity is important in stating the entropy of the system
A. initial entropy
B. final entropy
C. change in entropy
D. none of them
9 The concept of entropy was introduced into the study of thermodynamics in
A. 1856
B. 1865
C. 1656
D. 1685
10 Which of the following is not thermo dynamical function?
A. Enthalpy
B. Work done
C. Gibb's energy
D. Internal energy

Test Questions

Share your comments & questions here

Guest

  • No comments yet. Be the first to comment!