CHEMICAL ENGINEERING THERMODYNAMICS QUIZ

Which is an example of closed system?

Boiler

None of these

Air compressor

Liquid cooling system of an automobile

TRUE ANSWER : ?
YOUR ANSWER : ?

Co-efficient of performance for a reversed Carnot cycle working between temperatures T₁ and T₂ (T₁ > T₂) is

T₂/(T₁ - T₂)

(T₁ - T₂)/T₁

(T₁ - T₂)/T₂

T₁/(T₁ - T₂)

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following behaves most closely like an ideal gas?

N₂

H₂

He

O₂

TRUE ANSWER : ?
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A nozzle is a device, which

Increases kinetic energy and decreases pressure

Reduces kinetic energy and increases pressure

Increases both kinetic energy and pressure

Reduces both kinetic energy and pressure

TRUE ANSWER : ?
YOUR ANSWER : ?

Grams of butane (C₄H₁₀) formed by the liquefaction of 448 litres of the gas (measured at (STP) would be

640

580

1160

Data insufficient; can't be computed

TRUE ANSWER : ?
YOUR ANSWER : ?

Entropy change of the reaction, H₂O(liquid) H₂O(gas), is termed as the enthalpy of

Formation

Solution

Vaporisation

Formation

TRUE ANSWER : ?
YOUR ANSWER : ?

Free energy change at equilibrium is

Zero

Positive

Negative

Indeterminate

TRUE ANSWER : ?
YOUR ANSWER : ?

Gibbs free energy (F) is defined as

F = H - TS

F = H + TS

F = E + TS

F = E - TS

TRUE ANSWER : ?
YOUR ANSWER : ?

Which law of the thermodynamics provids basis for measuring the thermodynamic property?

Second law

First law

Zeroth law

Third law

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YOUR ANSWER : ?

The activity of an ideal gas is numerically __________ its pressure.

Equal to

Less than

Data insufficient, can't be predicted

More than

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YOUR ANSWER : ?

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