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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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	At the constant temperature, if the value of a given mass of a gas is double, then the density of gas becomes:	A. Double B. Remains constant C. Half D. None of these
2	Specific heat at constant pressure is greater than the specific heat at constant volume because	A. Heat is used up to increase temperature at constant pressure B. Heat is used by gas for expansions purposes at constant pressure C. Heat is use dup to increase internal energy D. The above statement is invalid
3	In the theory of dimensional analysis, heat may be properly represented by:	A. ML²T^-2 B. MT^-2 C. ML^-1T^-1 D. None of these
4	Which of the following is not an example of adiabatic process	A. the rapid escape of air from a burst type B. the rapid expansion and compression of air through which a sound wave is passing C. cloud formation in the atmosphere D. none of them
5	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	A. 1 : 2 B. 2 : 3 C. 3 : 4 D. 8 : 9
6	At what temperature the adiabatic change is equivalent to the isothermal change?	A. Zero degree Celsius B. Zero Kelvin C. Critical temperature D. Above critical temperature
7	A gas which strictly obeys the gas laws under all conditions of temperature and pressure is called:	A. Ideal gas B. Inert gas C. Real gas D. None of these
8	At O° K which of the following properties of a gas will be zero?	A. Kinetic energy B. Potential energy C. Vibrational energy D. Density
9	It is impossible to devise a processes which may convert heat, extracted from a single reservoir, entirely into work without leaving any change in the working system. This is the statement of	A. Clausius statement of second law B. Kelvin'sstatement of second law C. Clausius statement of first law D. Kelvin's statement of first law
10	On the exaust stroke, the outlet values opens. The residual gases are expelled and piston moves	A. outwards B. inwards C. in either way D. none of these

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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

Brownian motion increases due to

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

The rate of change of momentum of a molecule is equal to:

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

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

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

In an ideal gas, the molecules have:

The pressure exerted by the gas is

Good absorbers of heat are

Rice takes longest to cook

A real gas can be approximated to an ideal gas at

In the formula P = N0KT, N0denotes:

According to the second law, which is must to produce work

Efficiency of carnot engine is independent of the

Which quantity is important in stating the entropy of the system

A process which can be retraced in exactly reverse order, without producing any change in the surroundings is called

The process which is carried out at constant temperature is known as

The curve representing an adiabatic process is called

Electromagnetic waves emitted by hot bodies are called:

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

Hotness and coldness of an object is represented in terms:

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

If the ratio of densities of two gases is 1:4, then the ratio of their rates of diffusion into one another is

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

At the constant temperature, if the value of a given mass of a gas is double, then the density of gas becomes:

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

Absolute temperature can be calculated by

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

We cannot utilize the heat contents of oceans and atmosphere because

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

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

ECAT Physics Chapter 11 Important MCQ's

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In the formula P = N₀KT, N₀denotes: