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

First law of thermodynamics is consequence of conservation of

Question # 2

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

Question # 3

The concept of entropy was introduced into the study of thermodynamics in

Question # 4

Pressure may be define as _______ per second per unit area:

Question # 5

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

Question # 6

Triple point of water is

Question # 7

When two objects are rubbed together, their internal energy

Question # 8

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

Question # 9

The temperature of gas is produced by

Question # 10

The curve representing an isothermal process is called

Question # 11

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

Question # 12

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

Question # 13

At absolute temperature, the kinetic energy of the molecules

Question # 14

For the working of a heat engine, there must be

Question # 15

Melting point of ice

Question # 16

Rice takes longest to cook

Question # 17

Maximum density of H2O is at the temperature

Question # 18

The temperature scale approved in SI units is:

Question # 19

The ideal gas law is

Question # 20

Brownian motion increases due to

Question # 21

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

Question # 22

Hotness and coldness of an object is represented in terms:

Question # 23

No spark plug is needed in

Question # 24

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

Question # 25

If an amount of heat enters the system it could

Question # 26

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

Question # 27

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

Question # 28

The efficiency of diesel engine is

Question # 29

If R is gas constant for 1 gram mole, Cpand Cvare specific heat for a solid then

Question # 30

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

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 volume of the gas is to be increased by 4 times, then
A. Temperature and pressure must be doubled
B. At constant P the temperature must be increased by 4 times
C. At constant T the pressure must be increased by four times
D. It cannot be increased
2 At O° K which of the following properties of a gas will be zero?
A. Kinetic energy
B. Potential energy
C. Vibrational energy
D. Density
3 At absolute temperature, the kinetic energy of the molecules
A. Becomes zero
B. Becomes maximum
C. Becomes minimum
D. Remain constant
4 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
5 A gas is compressed adiabatically till its temperature is double. The ratio of its final volume to initial volume will be
A. 1/2
B. More than 1/2
C. Less than 1/2
D. Between 1 and 2
6 First law of thermodynamic is special case of
A. Law of conservation of energy
B. Charle's law
C. Law of conservation of mass
D. Boyle's law
7 When two objects are rubbed together, their internal energy
A. remains same
B. decreases
C. remains the same then decreases
D. increases
8 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
9 Good absorbers of heat are
A. Poor emitters
B. Non emitters
C. Good emitters
D. Highly polarized
10 The volume of given mass of a gas will be doubled at atmosphere pressure if the temperature of the gas is changed from 150°C to
A. 300°C
B. 573°C
C. 600°C
D. 743°C

Test Questions

Is this page helpful?