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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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 case of an ideal gas, the P.E associated with its molecule is	A. maximum B. zero C. minimum D. not fixed
2	Maximum density of H₂O is at the temperature	A. 32°F B. 39.2°F C. 42°F D. 4°F
3	A typical four stroke petrol engine undergoes how many successive processes in each cycle	A. one B. two C. three D. four
4	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
5	Triple point of water is	A. 273.16°F B. 372.16K C. 273.16°F D. 273.16
6	No spark plug is needed in	A. petrol engine B. diesel engine C. both of them D. none of them
7	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
8	The motion of molecules in gases is:	A. Orderly B. Random C. Circular D. All of these
9	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
10	Which of the following is not an assumption of kinetic energy	A. a finite volume of gas consists of very large number of molecules B. the gas molecules are in random motion C. collision between the gas molecules are inelastic D. the size of the gas molecules is much smaller than the separation between molecules

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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

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

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

At absolute temperature, the kinetic energy of the molecules

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

The temperature of gas is produced by

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

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

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

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

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

One mole of any substance contain

Energy gas behaves like an ideal gast at

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

In the formula P = N0KT, N0denotes:

Truth of kinetic energy is confirmed by:

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:

What temperature is the same on Celsius scale as well as on Fahrenheit scale?

Heat travels through vacuum by

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

An isochoric process is one which take place at

In a heat engine, heat is supplied by the

No spark plug is needed in

Absolute zero is considered as that temperature at which:

A succession of events which bring the system back to its initial condition is called

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

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

Amount of heat required to raise the temperature of a body through 1 K is called its

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

The internal energy of an ideal gas system is generally the

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ECAT Physics Chapter 11 Important MCQ's

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In the formula P = N₀KT, N₀denotes:

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: