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

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

Question # 2

The efficiency of carnot engine cannot be 100% or one unless cold reservoir is at

Question # 3

Which of the following is a state variable

Question # 4

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

Question # 5

First law of thermodynamic is special case of

Question # 6

One mole of any substance contain

Question # 7

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

Question # 8

Real gases strictly obey gas law at:

Question # 9

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

Question # 10

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

Question # 11

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

Question # 12

When heat is removed from the system

Question # 13

The kinetic energy of one molecule of a gas at normal temperature and pressure will be (k = 8.31 J/mole K) :

Question # 14

Energy gas behaves like an ideal gast at

Question # 15

The efficiency of petrol engine is usually not more than 25% to 30% because of

Question # 16

For the working of a heat engine, there must be

Question # 17

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

Question # 18

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 # 19

Sadi carnot described an ideal heat engine in

Question # 20

At absolute temperature, the kinetic energy of the molecules

Question # 21

The internal energy of a system does not depend upon the

Question # 22

The pressure of gas everywhere inside the vessel will be the same provided the gas is of

Question # 23

We can express the work in term of

Question # 24

On colliding in a closed container, the gas molecules

Question # 25

The absolute temperature of the tripple point of water is

Question # 26

In an adiabatic expansion, the temperature of the gas

Question # 27

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

Question # 28

If a system undergoes a natural process it will go in the direction that causes the entropy of the system plus the environment to increase, this is another statement of

Question # 29

The temperature scale approved in SI units is:

Question # 30

At constant volume temperature is increased. Then

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 If the distance between two charges is doubled, the force between them will become:
A. Double
B. Half
C. Three times
D. One fourth
2 In an adiabatic expansion, the temperature of the gas
A. increases
B. becomes zero
C. decreases
D. decreases rapidly
3 In an ideal gas, the molecules have:
A. Kinetic energy only
B. Potential energy only
C. Both KE and PE
D. None of these
4 One mole of any substance contain
A. same number of molecules
B. different number of molecules
C. may be same or different
D. none of them
5 A process which can be retraced in exactly reverse order, without producing any change in the surroundings is called
A. reversible process
B. irreversible process
C. any one of them
D. none of them
6 The earliest heat engine was
A. petrol engine
B. diesel engine
C. electric engine
D. steam engine
7 An amount of water of mass 20 g at 0°C is mixed with 40 g of water at 10°C. Final temperature of mixture is
A. -20°C
B. 6.67°C
C. 5°C
D. 0°C
8 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
9 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
10
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

Test Questions

Is this page helpful?

Share your comments & questions here

Guest

  • No comments yet. Be the first to comment!