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

In an ideal gas, the molecules have:

Question # 2

On the exaust stroke, the outlet values opens. The residual gases are expelled and piston moves

Question # 3

At constant temperature, on increasing the pressure of a gas by 5%, its volume. The final temperature of the gas will be

Question # 4

The volume of universal gas constant R is:

Question # 5

Adiabatic change occurs when the gas

Question # 6

The ideal gas law is

Question # 7

In which process the condition for the application of Boyle's law on the gas is fulfilled

Question # 8

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

Question # 9

First law of thermodynamics tells us that heat energy can be converted into equivalent amount of work, but it is silent about

Question # 10

Tick the correct pair when M denotes the molecular mass and other symbols carry usual meanings:

Question # 11

Average KE of a gas molecule has:

Question # 12

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

Question # 13

In an adiabatic expansion, the temperature of the gas

Question # 14

When two objects come to common temperature, the body is said to be in:

Question # 15

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 # 16

The efficiency of petrol engine is usually not more than 25% to 30% because of

Question # 17

Pressure exerted by a gas is

Question # 18

Pressure applied at any point of gas at rest is transmitted equally to all parts of the gas. This is the statement of:

Question # 19

For making cooking utensils, which of the following pairs of properties is most suited?

Question # 20

The basis to define a temperature scale that is independent of material properties is provided by

Question # 21

Heat required to raise the temperature of one mole of a gas through 1 K at constant pressure is called

Question # 22

The internal energy of an ideal gas system is generally the

Question # 23

A real gas can be approximated to an ideal gas at

Question # 24

Absolute zero is considered as that temperature at which:

Question # 25

Triple point of water is

Question # 26

Rate of diffusion is

Question # 27

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

Question # 28

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

Question # 29

The absolute temperature for an ideal gas is

Question # 30

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

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 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
2 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
3 Amount of heat required to raise the temperature of a body through 1 K is called its
A. Specific heat
B. Water equivalent
C. Thermal capacity
D. Entropy
4 While deriving equation of pressure by kinetic theory of gases, we take into account:
A. Only linear motion of molecules
B. Only rotational motion
C. Only vibratory motion
D. All of these
5 The rate of change of momentum of a molecule is equal to:
A. Pressure
B. Work
C. Density
D. Force
6 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
7 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
8 Efficiency of carnot engine is independent of the
A. temperature of sink
B. temperature of source
C. nature of the working substances
D. none of them
9 An isochoric process is one which take place at
A. Constant internal energy
B. Constant entropy
C. Constant volume
D. Constant pressure
10 If the distance between two charges is doubled, the force between them will become:
A. Double
B. Half
C. Three times
D. One fourth

Test Questions

Is this page helpful?

Share your comments & questions here

Guest

  • No comments yet. Be the first to comment!