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

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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	In thermodynamics, internal energy is the function of	A. temperature B. pressure C. state D. none of them
2	A typical four stroke petrol engine undergoes how many successive processes in each cycle	A. one B. two C. three D. four
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	If a liquid is heated in weightlessness, the heat is transmitted through	A. Conduction B. Convection C. Radiation D. Neither, because the liquid cannot be heated in weightlessness
5	The Boltzman constant has the value	A. 1.38 x 10^-23JK^-1 B. 1.28 x 10^-23JK^-1 C. 1.38 x 10^-26JK^-1 D. 1.28 x 10^-26JK^-1
6	Heat travels through vacuum by	A. Conduction B. Convection C. Radiation D. Both A and B
7	Heat required to raise the temperature of one mole of a gas through 1 K at constant pressure is called	A. heat capacity B. specific heat capacity C. specific heat at constant volume D. specific heat at constant pressure
8	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
9	When two objects are rubbed together, their internal energy	A. remains same B. decreases C. remains the same then decreases D. increases
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

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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

Melting point of ice

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

In the study of thermodynamics, which gas is considered as the working substance

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

Carnot heat engine only used

In the formula P = N0KT, N0denotes:

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

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

Which of the following is a state variable

A typical four stroke petrol engine undergoes how many successive processes in each cycle

The pressure of gas everywhere inside the vessel will be the same provided the gas is of

Efficiency of carnot engine is independent of the

The value of E0in coulomb's law is:

Average KE of a gas molecule has:

For the working of a heat engine, there must be

R.M.S velocity of a particle is V at pressure P. If pressure increases by two times, then R.M.S velocity becomes

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

Triple point of water is

Internal energy is the sum of all the forms of

The absolute temperature of the tripple point of water is

At constant volume temperature is increased. Then

In thermodynamics, internal energy is the function of

One kilogram of different substances contain

In a heat engine, heat is supplied by 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:

Boyle's law is applicable in

Heat travels through vacuum by

No spark plug is needed in

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

If the formula PV = nRT, n denotes:

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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:

In the formula P = N₀KT, N₀denotes:

The value of E₀in coulomb's law is:

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: