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

We cannot utilize the heat contents of oceans and atmosphere because

Question # 2

An isochoric process is one which take place at

Question # 3

Since the absolute scale is independent of the property of the working substance, hence, can be applied at

Question # 4

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

Question # 5

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

Question # 6

Sadi carnot described an ideal heat engine in

Question # 7

The unit of thermodynamical scale is

Question # 8

On the compression stroke of the petrol engine, the inlet value is closed and the mixture is compressed

Question # 9

The temperature of gas is produced by

Question # 10

A succession of events which bring the system back to its initial condition is called

Question # 11

Triple point of water is

Question # 12

When heat is added into the system then change in entropy is

Question # 13

Boyle's law is applicable in

Question # 14

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

Question # 15

At what temperature the adiabatic change is equivalent to the isothermal change?

Question # 16

The nature of thermal radiation is similar to:

Question # 17

The example of irreversible process is

Question # 18

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

Question # 19

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

Question # 20

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

Question # 21

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

Question # 22

Which quantity is important in stating the entropy of the system

Question # 23

If the volume of the gas is to be increased by 4 times, then

Question # 24

Two samples A and B of a gas initially of the same temperature and pressure are compressed from a volume V to a volume V/2 such that A is compressed isothermally and B adiabatically. The final pressure

Question # 25

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

Question # 26

An irreversible heat flow from a hot to cold substances of a system, causes the disorder to

Question # 27

Which of the following does not have the same units:

Question # 28

The internal energy of a system does not depend upon the

Question # 29

A real gas can be approximated to an ideal gas at

Question # 30

The bicycle pump provides a good example of

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 The highest efficiency of a heat engine whose low temperature is 17°C and the high temperature is 200°C is
A. 70%
B. 100%
C. 35%
D. 38%
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 An isochoric process is one which take place at
A. Constant internal energy
B. Constant entropy
C. Constant volume
D. Constant pressure
4 Rate of diffusion is
A. Faster in solids than in liquids and gases
B. Faster in liquids than in solids and gases
C. Equal to solids, liquids and gases
D. Faster in gases than in liquids and solids
5 The relationship between Boltzmann constant k with R and NAis given as:
A. k = RNA
B. k =R/NA
C. k = NR/NA
D. None of these
6 The absolute temperature for an ideal gas is
A. directly proportional to the rotational K.E of gas molecules
B. directly proportional to the vibrational K.E of gas molecules
C. directly proportional to the average translational K.E.of gas molecules
D. directly proportional to the P.E. of gas molecules
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 Truth of kinetic energy is confirmed by:
A. Diffusion of gases
B. Brownian motion
C. Both A and B
D. None of these
9 Sadi carnot described an ideal heat engine in
A. 1820
B. 1840
C. 1860
D. 1880
10 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

Test Questions

Is this page helpful?