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

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

Question # 2

At constant volume temperature is increased. Then

Question # 3

Since the absolute scale is independent of the property of the working substance, hence, can be applied at

Question # 4

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

Question # 5

In the formula P = N0KT, N0denotes:

Question # 6

The percentage of available heat energy converted into work by a diesel engine is roughly

Question # 7

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

Question # 8

A process is a reversible process, if the entropy of the system

Question # 9

For the working of a heat engine, there must be

Question # 10

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

Question # 11

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

Question # 12

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

Question # 13

The absolute temperature of the tripple point of water is

Question # 14

While deriving equation of pressure by kinetic theory of gases, we take into account:

Question # 15

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

Question # 16

The ideal gas law is

Question # 17

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

Question # 18

Boyle's law is applicable in

Question # 19

In case of an ideal gas, the P.E associated with its molecule is

Question # 20

Melting point of ice

Question # 21

Electromagnetic waves emitted by hot bodies are called:

Question # 22

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

Question # 23

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

Question # 24

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

Question # 25

The temperature of gas is produced by

Question # 26

At what temperature the adiabatic change is equivalent to the isothermal change?

Question # 27

If a process cannot be retraced in the backward direction by reversing the controlling factors, it is

Question # 28

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

Question # 29

The nature of thermal radiation is similar to:

Question # 30

Hotness and coldness of an object is represented in terms:

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 The pressure of gas everywhere inside the vessel will be the same provided the gas is of
A. Non-uniform density
B. uniform density
C. high density
D. low density
2 Internal energy is the sum of all the forms of
A. K.E
B. P.E
C. both of them
D. none of them
3 An amount of water of mass 20 g at 0°C is mixed with 40 g of water at 10°C. Final temperature of mixture is
A. -20°C
B. 6.67°C
C. 5°C
D. 0°C
4 A carnot cycle consists of
A. One step
B. two step
C. three steps
D. four steps
5 In an ideal gas, the molecules have:
A. Kinetic energy only
B. Potential energy only
C. Both KE and PE
D. None of these
6 A typical four stroke petrol engine undergoes how many successive processes in each cycle
A. one
B. two
C. three
D. four
7 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
8 The work done on the system by the environment is considered as
A. positive
B. negative
C. zero
D. any one of them
9 Which of the following is not thermo dynamical function?
A. Enthalpy
B. Work done
C. Gibb's energy
D. Internal energy
10 Heat travels through vacuum by
A. Conduction
B. Convection
C. Radiation
D. Both A and B

Test Questions