ECAT Pre Engineering Physics Chapter 11 MCQ Test With Answer

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

D

Deuspeu 25 - Sep - 2024 02 Min 03 Sec 115/120
M

M Umer Arain 19 - Nov - 2024 00 Min 11 Sec 105/120
D

Dr Shahida 01 - Nov - 2024 11 Min 12 Sec 100/120
N

Nitalaya Hassan 24 - Dec - 2024 04 Min 02 Sec 95/120
G

Ghulam Murtaza 12 - Sep - 2024 20 Min 35 Sec 95/120
A

Akshey Lohana 27 - Aug - 2024 14 Min 26 Sec 90/120
U

Umair Rajput 09 - Sep - 2024 15 Min 22 Sec 85/120
I

It's me Sm 26 - Aug - 2024 04 Min 12 Sec 80/120
S

Sania Ahmed 16 - Dec - 2024 04 Min 58 Sec 75/120
K

Kalsoom Memon 20 - Sep - 2024 06 Min 11 Sec 75/120
S

Sanjna Uttwani 21 - Sep - 2024 05 Min 22 Sec 70/120
S

Sudais Khan 12 - Jul - 2024 07 Min 45 Sec 70/120
A

Aakash Rind 07 - Dec - 2024 06 Min 58 Sec 65/120
A

Ali imtiaz 01 - Oct - 2024 07 Min 18 Sec 65/120
R

Rashida Latif 13 - Jan - 2025 07 Min 37 Sec 65/120

ECAT Physics Chapter 11 Important MCQ's

Sr.#	Question	Answer
1	On colliding in a closed container, the gas molecules	A. Transfer momentum to the walls B. Momentum becomes zero C. Move in opposite directions D. Perform Brownian motion
2	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%
3	If N is the total number of molecules and V is the volume of the container, then the expression for the pressure of gas is	A. P=P/V<1/2mv²> B. P=2N/V<1/2mv²> C. P=2/3N/V<1/2mv²> D. P=2/3N/V<mv²>
4	According to kinetic theory of gases, molecules of a gas behave like	A. Inelastic spheres B. Perfectly elastic rigid sphere C. Perfectly elastic non-rigid spheres D. Inelastic non-rigid spheres
5	The only significant motion possessed by the mono-atomic gas represented is:	A. Translatory B. Rotatory C. Vibratory D. None of these
6	In the reverse process, the working substance passes through the same stages as in the direct process and	A. thermal effects at each stage are exactly reversed B. mechanical effects at each stage are exactly reversed C. thermal and mechanical effects at each stage remain the same D. thermal and mechanical effects at each stage are exactly reversed
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	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	A. 0 J B. 2 J C. 5 J D. 10 J
9	Average KE of a gas molecule has:	A. Direct relation with absolute temperature and inverse relation with pressure B. Direction relation with both absolute temperature and pressure C. Inverse relation with both absolute temperature and pressure D. None of these
10	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

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 Engineering Physics Chapter 11 MCQ Test With Answer

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

Physics ECAT Pre Engineering Chapter 11 Heat & Thermodynamics

The temperature of gas is produced by

The second law of thermodynamics is concerned with the circumstances in which

In thermodynamics, internal energy is the function of

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

Energy gas behaves like an ideal gast at

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

We can express the work in term of

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

Average KE of a gas molecule has:

According to kinetic theory of gases, molecules of a gas behave like

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

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

Which quantity is important in stating the entropy of the system

The ideal gas law is

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

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

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

Which of the following is a state variable

Which of the following is not an assumption of kinetic energy

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

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

In the study of thermodynamics, which gas is considered as the working substance

A real gas can be approximated to an ideal gas at

On a cold morning a metal surface will fell colder to touch than a wooden surface, because

The internal energy of an ideal gas system is generally the

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

In an adiabatic process the work is done at the expense of the

Rate of diffusion is

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

A heat engine is that which converts

Prepare Complete Set Wise Physics ECAT Pre Engineering 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 Physics ECAT Pre Engineering Chapter 11 Heat & Thermodynamics MCQ`s Test

ECAT Physics Chapter 11 Important MCQ's

Test Questions

Is this page helpful?

Share your comments & questions here

Bilal A Munir