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	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
2	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
3	First law of thermodynamic is special case of	A. Law of conservation of energy B. Charle's law C. Law of conservation of mass D. Boyle's law
4	In the study of thermodynamics, which gas is considered as the working substance	A. real gas B. ideal gas C. any gas may be ideal or real D. none of them
5	If the volume of the gas is to be increased by 4 times, then	A. Temperature and pressure must be doubled B. At constant P the temperature must be increased by 4 times C. At constant T the pressure must be increased by four times D. It cannot be increased
6	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
7	The absolute temperature for an ideal gas is	A. directly proportional to the rotational K.E of gas molecules B. directly proportional to the vibrational K.E of gas molecules C. directly proportional to the average translational K.E.of gas molecules D. directly proportional to the P.E. of gas molecules
8	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
9	The percentage of available heat energy converted into work by a diesel engine is roughly	A. 35 %` B. 40 % C. 35 - 40 % D. 25 %
10	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

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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

Which of the following does not have the same units:

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

Specific heat at constant pressure is greater than the specific heat at constant volume because

For making cooking utensils, which of the following pairs of properties is most suited?

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

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

If 42 J heat is transferred to the system and the work done by the system is 32 J then what will be the change in internal energy

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

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

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

First law of thermodynamic is special case of

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

If water in a closed bottle is taken up to the moon and opened, the water gets

Boyle's law is applicable in

Hotness and coldness of an object is represented in terms:

A carnot cycle consists of

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

In a heat engine, heat is supplied by the

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

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

In the formula P = N0KT, N0denotes:

At constant volume temperature is increased. Then

The bicycle pump provides a good example of

The internal energy of an ideal gas system is generally the

Pressure exerted by a gas is

Generally a temperature scale is established by

Which of the following is not thermo dynamical function?

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

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

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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:

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: