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

While deriving equation of pressure by kinetic theory of gases, we take into account:

Question # 2

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

Question # 3

One kilogram of different substances contain

Question # 4

In thermodynamics, internal energy is the function of

Question # 5

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

Question # 6

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

Question # 7

The bicycle pump provides a good example of

Question # 8

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

Question # 9

On colliding in a closed container, the gas molecules

Question # 10

Melting point of ice

Question # 11

The example of irreversible process is

Question # 12

Which of the following is not thermo dynamical function?

Question # 13

The heat required to raise the temperature of one mole of the gas through 1 K at constant volume is called

Question # 14

Boyle's law is applicable in

Question # 15

In the theory of dimensional analysis, heat may be properly represented by:

Question # 16

A carnot cycle consists of

Question # 17

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

Question # 18

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 # 19

Rice takes longest to cook

Question # 20

The length of a metallic rod is 5 meter at 100°C. The coefficient of cubical expansion of the metal will be

Question # 21

When the temperature of source and sink of a heat engine become equal entropy change will be

Question # 22

The motion of molecules in gases is:

Question # 23

In case of an ideal gas, the P.E associated with its molecule is

Question # 24

If an amount of heat enters the system it could

Question # 25

The example of reversible process is

Question # 26

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 # 27

The nature of thermal radiation is similar to:

Question # 28

Rate of diffusion is

Question # 29

While deriving the equation for pressure of a gas we consider the

Question # 30

Which quantity is important in stating the entropy of the system

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 When heat is added into the system then change in entropy is
A. negative
B. positive
C. zero
D. any one of them
2 We cannot utilize the heat contents of oceans and atmosphere because
A. there is no reservoir at the same temperature
B. there is no reservoir at the temperature lower than any one of two
C. there is no reservoir at the temperature higher than any one of two
D. none of them
3 No spark plug is needed in
A. petrol engine
B. diesel engine
C. both of them
D. none of them
4 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
5 We can express the work in term of
A. directly measurable variables
B. indirectly measurable variables
C. either of them
D. both of them
6 The motion of molecules in gases is:
A. Orderly
B. Random
C. Circular
D. All of these
7 Adiabatic change occurs when the gas
A. expands
B. compressed
C. expands or compressed
D. expands or compressed rapidly
8 Hydrogen and helium of same volume V at same temperature T and same pressure P are mixed to have same volume V. The resulting pressure of the mixtures will be
A. R/2
B. P
C. 2P
D. Depending on the relative mass of the gases
9 In an adiabatic expansion, the temperature of the gas
A. increases
B. becomes zero
C. decreases
D. decreases rapidly
10 The heat required to raise the temperature of one mole of the substance through 1 K is called
A. heat capacity
B. specific heat capacity
C. molar specific heat
D. all of them

Test Questions

Is this page helpful?

Share your comments & questions here

Guest

  • No comments yet. Be the first to comment!