Question # 1

The bicycle pump provides a good example of

Choose an answer

first law of thermodynamics

second law of thermodynamics

third law of thermodynamics

none of them

In an adiabatic process the work is done at the expense of the

Choose an answer

energy supplied to the system

energy gained from the surroundings

internal energy

none of them

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

Choose an answer

Double

Half

Three times

One fourth

One third

On the exaust stroke, the outlet values opens. The residual gases are expelled and piston moves

Choose an answer

outwards

inwards

in either way

none of these

The absolute temperature for an ideal gas is

Choose an answer

directly proportional to the rotational K.E of gas molecules

directly proportional to the vibrational K.E of gas molecules

directly proportional to the average translational K.E.of gas molecules

directly proportional to the P.E. of gas molecules

Internal energy is the sum of all the forms of

Choose an answer

K.E

P.E

both of them

none of them

If R is gas constant for 1 gram mole, C_pand C_vare specific heat for a solid then

Choose an answer

C_p- C_v= R

C_p- C_{v < R}

C_p- C_{v = 0}

C_p- C_{v > R}

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

Choose an answer

a source contains a large amount of heat energy

two sources at the same temperature

two sources at the different temperatures

a source contains a small amount of energy

A diatomic gas molecule has

Choose an answer

translational energy

rotaional energy

vibrational energy

all of them

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

Choose an answer

isochoric process

adiabatic process

isothermal process

none of them

Gas constant per molecule is called:

Choose an answer

Universal gas constant

Stefen's constant

Boltzmann constant

Gravitation constant

Absolute temperature can be calculated by

Choose an answer

Means squares velocity

Motion of the molecule

Both A and B

None of these

The coefficient of linear expansion of iron is 0.000011 per°K. An iron rod is 10 metre long at 27°C. The length of the rod will be decreased by 1.1 mm when the temperature of the rod changes to

Choose an answer

0°C

10°C

17°C

20°C

In thermodynamics, internal energy is the function of

Choose an answer

temperature

pressure

state

none of them

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

Choose an answer

zero degree celsius

zero degree fahrenheit

absolute zero

373 K

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

Choose an answer

heat capacity

specific heat capacity

specific heat at constant volume

specific heat at constant pressure

More Classes

Other Links

ECAT Physics Chapter 11 Heat & Thermodynamics Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer