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

A gas which strictly obeys the gas laws under all conditions of temperature and pressure is called:

Question # 2

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

Question # 3

At constant temperature, if the density of the gas is increased, its pressure will:

Question # 4

In an ideal gas, the molecules have:

Question # 5

Generally a temperature scale is established by

Question # 6

When heat is added into the system then change in entropy is

Question # 7

We cannot utilize the heat contents of oceans and atmosphere because

Question # 8

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

Question # 9

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

Question # 10

Generally a temperature scale is established by using certain physical properties of a material which varies

Question # 11

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

Question # 12

Which of the following is not thermo dynamical function?

Question # 13

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

Question # 14

The absolute temperature for an ideal gas is

Question # 15

If an amount of heat enters the system it could

Question # 16

We can express the work in term of

Question # 17

The Boltzman constant has the value

Question # 18

Which of the following does not have the same units:

Question # 19

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

Question # 20

If a liquid is heated in weightlessness, the heat is transmitted through

Question # 21

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

Question # 22

Maximum density of H2O is at the temperature

Question # 23

The example of reversible process is

Question # 24

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

Question # 25

Internal energy is the sum of all the forms of

Question # 26

The curve representing an isothermal process is called

Question # 27

For the working of a heat engine, there must be

Question # 28

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

Question # 29

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

Question # 30

10 c.c. each of oxygen and hydrogen are kept in separate flasks. Then which of the following relations is correct?

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 Triple point of water is
A. 273.16°F
B. 372.16K
C. 273.16°F
D. 273.16
2 Pressure exerted by a gas is
A. Independent of density of the gas
B. Inversely proportional to the density of the gas
C. Directly proportional to the square of the density of the gas
D. Directly proportional to the density of the gas
3 While deriving the equation for pressure of a gas we consider the
A. rotational motion of molecules
B. vibrational motion of molecules
C. linear motion of molecules
D. all of them
4 Gas constant per molecule is called:
A. Universal gas constant
B. Stefen's constant
C. Boltzmann constant
D. Gravitation constant
5 The disorder in the system increases due to the
A. removal of heat
B. addition of heat
C. removal or addition of heat
D. none of them
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 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
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 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
10 Which quantity is important in stating the entropy of the system
A. initial entropy
B. final entropy
C. change in entropy
D. none of them

Test Questions