ECAT Pre General Science Chapter 11 online mcq test with answers for Physics chapter 11 (Heart & Thermodynamics)

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	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	A. 1 : 2 B. 2 : 3 C. 3 : 4 D. 8 : 9
2	Specific heat at constant pressure is greater than the specific heat at constant volume because	A. Heat is used up to increase temperature at constant pressure B. Heat is used by gas for expansions purposes at constant pressure C. Heat is use dup to increase internal energy D. The above statement is invalid
3	A heat engine is that which converts	A. mechanical energy into thermal energy B. thermal energy into mechanical energy C. K.E into potential energy D. heat energy into light energy
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	At the constant temperature, if the value of a given mass of a gas is double, then the density of gas becomes:	A. Double B. Remains constant C. Half D. None of these
6	Which of the following is not an example of adiabatic process	A. the rapid escape of air from a burst type B. the rapid expansion and compression of air through which a sound wave is passing C. cloud formation in the atmosphere D. none of them
7	If a liquid is heated in weightlessness, the heat is transmitted through	A. Conduction B. Convection C. Radiation D. Neither, because the liquid cannot be heated in weightlessness
8	In a heat engine, heat is supplied by the	A. cold reservoir B. sink C. hot reservoir D. none of them
9	At constant temperature, on increasing the pressure of a gas by 5%, its volume. The final temperature of the gas will be	A. 81 K B. 355 K C. 627 K D. 627°C
10	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

Latest Educational News Stories

Pakistan's Largest Database of Colleges and Universities

BS Programs

University Past Papers

University Results

Exam Results 2024

Study Abroad Programs and Opportunities for Pakistani Students

ECAT Pre General Science Physics Chapter 11 MCQ Test With Answer

MCQ's Test For ECAT Pre General Science Physics Chapter 11 Heat & Thermodynamics

ECAT Pre General Science Physics Chapter 11 Heat & Thermodynamics

When two objects are rubbed together, their internal energy

The efficiency of diesel engine is

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

When heat is removed from the system

If the distance between two charges is doubled, the force between them will become:

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

If an amount of heat enters the system it could

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

According to the second law, which is must to produce work

Amount of heat required to raise the temperature of a body through 1 K is called its

In an ideal gas, the molecules have:

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

In thermodynamics, internal energy is the function of

Which of the following does not have the same units:

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

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

The example of irreversible process is

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

A real gas can be approximated to an ideal gas at

The temperature of gas is produced by

In the reverse process, the working substance passes through the same stages as in the direct process and

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

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

Brownian motion increases due to

The earliest heat engine was

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

The internal energy of a system does not depend upon the

At absolute temperature, the kinetic energy of the molecules

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

On colliding in a closed container, the gas molecules

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

Set 1

Set 2

Set 3

Set 4

Set 5

Set 6

Topic Test

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

ECAT Physics Chapter 11 Important MCQ's

Test Questions

Is this page helpful?

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