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

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Malik Farhan 26 - Jan - 2019 08 Min 09 Sec 80/120
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Waleed Ahmed 24 - Feb - 2023 05 Min 43 Sec 50/120
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Maliha afridi 25 - Oct - 2018 11 Min 47 Sec 50/120
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Gimi tunio 30 - Jun - 2018 26 Min 00 Sec 45/120
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Malik Farhan 23 - May - 2021 07 Min 14 Sec 35/120
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Farhan Sial 30 - Aug - 2018 09 Min 36 Sec 30/120
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Ahmed Ali Shah 07 - Nov - 2023 01 Min 01 Sec 25/120
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kamal deep 17 - Jun - 2023 02 Min 55 Sec 20/120
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hamza abid 27 - Jan - 2022 10 Min 50 Sec 20/120
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Mohsin rajput Rajput 21 - Sep - 2025 06 Min 38 Sec 9/30
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Frankie 09 - Sep - 2022 01 Min 29 Sec 0/120

ECAT Physics Chapter 11 Important MCQ's

Sr.#	Question	Answer
1	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
2	Pressure of a gas at constant volume is proportion to	A. Total energy of gas B. Average P.E to molecules C. Average K.E of molecules D. Total internal energy of gas
3	Real gases strictly obey gas law at:	A. High pressure and low temperatures B. Low pressures and high temperatures C. High pressures and high temperatures D. None of these
4	According to the second law, which is must to produce work	A. a source contains a large amount of heat energy B. two sources at the same temperature C. two sources at the different temperatures D. a source contains a small amount of energy
5	The concept of entropy was introduced into the study of thermodynamics in	A. 1856 B. 1865 C. 1656 D. 1685
6	At constant volume temperature is increased. Then	A. Collision on walls will be less B. Number of collisions per unit time will increase C. Collision will be in straight lines D. Collision will not change
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	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
9	The temperature scale approved in SI units is:	A. Celsius scale B. Kelvin scale C. Fehrenheit scale D. None of these
10	Energy gas behaves like an ideal gast at	A. High temperature and low pressure B. Low temperature and high pressure C. Both A and B D. None

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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

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

Rice takes longest to cook

Real gases strictly obey gas law at:

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

Heat travels through vacuum by

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

The curve representing an adiabatic process is called

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

Brownian motion increases due to

First law of thermodynamic is special case of

A heat engine is that which converts

If an amount of heat enters the system it could

In an adiabatic expansion, the temperature of the gas

The example of irreversible process is

The motion of molecules in gases is:

A reversible cycle is the one in which

Good absorbers of heat are

The unit of thermodynamical scale is

The state in which ice, water and vapour coexists in equilibrium is called

During the whole carnot cycle

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

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

The nature of thermal radiation is similar to:

Adiabatic change occurs when the gas

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

A carnot cycle consists of

The internal energy of an ideal gas system is generally the

Efficiency of carnot engine is independent of the

If denotes the total number of molecules in cubic vessel such that m is mass of each milecule and I is length of each side of vessel, then mN/I3gives the:

Triple point of water is

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ECAT Physics Chapter 11 Important MCQ's

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

If denotes the total number of molecules in cubic vessel such that m is mass of each milecule and I is length of each side of vessel, then mN/I³gives the: