Question # 1

The internal energy of a piece of lead when beaten by hammer will.

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Increase

Decrease

Remains constant

Increases and then decrease

Almost all the raw energy is librated from

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Heat

Earth

Light

All of these

The difference between tow molar capacities is equal to.

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Plank's constant

General gas equation

Molar gas constant

Boltzmann constant

The collision between the gas molecules is

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Elastic

Inelastic

Both a and b

None of these

For working of heat engine, there must be

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A source

A sink

Ether of these

Both of them

Force acting on the piston to move outward is.

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Compressive stoke

Power stoke

All stoke

Exhaust stoke

In reversible process the entropy of system.

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Remain constant

Decrease

Increase

Becomes zero

Which is an example of irreversible process.

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Explosion

Evaporation

Slow compression

A chemical explosion

At which of the following temperature a body has maximum internal energy.

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-273 ^oC

0 K

273 K

-273 K

Boltzman constant 'k' has same unit as.

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Temperature

Energy

Entropy

Pressure

Which remains constant in an adiabatic process.

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Volume

Pressure

entropy

temperature

the work done in isochoric process is.

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Constant

Variable

Zero

Depend upon condition

The kinetic energy of molecules of an ideal gas at absolute zero is

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Very low

Very high

Zero

First increases then decreases

The internal energy of system does not depend on

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Temperature

Pressure

Path

Final and initial state

For an ideal gas, the internal energy is directly proportional to.

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Pressure

volume

Mass

Temperature

The curve representing an adiabatic process is called.

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An adiabatic

An isotherm

Both of these

None of these

The Carnot cycle can be shown by which graph

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P - T graph

P - V Graph

V- T graph

PV -T graph

The work done is isochoric process is.

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Constant

Variable

Zero

Depend upon condition

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