CHEMICAL ENGINEERING THERMODYNAMICS QUIZ

Which of the following liquid metals has the highest thermal conductivity?

Molten sodium

Mercury

Molten lead

Molten potassium

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Specific volume of an ideal gas is

None of these

Proportional to pressure

The reciprocal of its density

Equal to its density

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Enthalpy of a gas depends upon its

Mass

Pressure

Volume

Temperature

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1st law of thermodynamics is nothing but the law of conservation of

Energy

Mass

None of these

Momentum

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The effect of changing the evaporator temperature on COP as compared to that of changing the condenser temperature (in vapour compression refrigeration system) is

Data insufficient, can't be predicted

More pronounced

Less pronounced

Equal

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Gibbs free energy per mole for a pure substance is equal to the

Heat capacity

Molal boiling point

Chemical potential

Latent heat of vaporisation

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At absolute zero temperature, the __________ of the gas is zero.

Volume

None of these

Mass

Pressure

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The internal energy of an incompressible fluid depends upon its

Pressure

Both A & B

Temperature

Neither A nor B

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A gas can be liquified by pressure alone only, when its temperature is __________ its critical temperature.

Less than

Equal to or higher than

More than

Less than or equal to

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Water on heating from 1 to 4°C

Expands

Has same volume

Contracts

May contract or expand

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