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

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ECAT Physics Chapter 11 Important MCQ's

Sr.#	Question	Answer
1	If the distance between two charges is doubled, the force between them will become:	A. Double B. Half C. Three times D. One fourth
2	Gas constant per molecule is called:	A. Universal gas constant B. Stefen's constant C. Boltzmann constant D. Gravitation constant
3	10 c.c. each of oxygen and hydrogen are kept in separate flasks. Then which of the following relations is correct?	A. Each have same number of molecules B. Don't have same number of molecules C. Can't be predicted D. None
4	Carnot heat engine only used	A. isothermal processes B. adiabatic processes C. both of them D. none of them
5	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
6	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
7	In an adiabatic expansion, the temperature of the gas	A. increases B. becomes zero C. decreases D. decreases rapidly
8	If the ratio of densities of two gases is 1:4, then the ratio of their rates of diffusion into one another is	A. 2 : 1 B. 4 : 1 C. 1 : 4 D. 3 : 4
9	The only significant motion possessed by the mono-atomic gas represented is:	A. Translatory B. Rotatory C. Vibratory D. None of these
10	The internal energy of an ideal gas system is generally the	A. translational K.E of molecules B. vibrational K.E of molecules C. rotational K.E of molecules D. all 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

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

The absolute temperature for an ideal gas is

A reversible cycle is the one in which

Which quantity is important in stating the entropy of the system

An isochoric process is one which take place at

Gas constant per molecule is called:

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

Which of the following is not an assumption of kinetic energy

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

A diatomic gas molecule has

Hotness and coldness of an object is represented in terms:

The heat required to raise the temperature of one mole of the substance through 1 K is called

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

The internal energy of an ideal gas system is generally the

A gas is compressed adiabatically till its temperature is double. The ratio of its final volume to initial volume will be

The product of the pressure and volume of an ideal gas is

Generally a temperature scale is established by

At constant volume temperature is increased. Then

Good absorbers of heat are

Absolute zero is considered as that temperature at which:

Truth of kinetic energy is confirmed by:

Adiabatic change occurs when the gas

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:

The bicycle pump provides a good example of

We cannot utilize the heat contents of oceans and atmosphere because

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

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

On a cold morning a metal surface will fell colder to touch than a wooden surface, because

The number of translation degress of freedom for a diatomic gas is

In an ideal gas, the molecules have:

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ECAT Physics Chapter 11 Important MCQ's

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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: