CHEMICAL ENGINEERING THERMODYNAMICS QUIZ

Cp of a gas at its critical temperature and pressure

Equals 0.24 kcal/kmol °K

Equals 1 kcal/kmol °K

Becomes infinity

Becomes zero

TRUE ANSWER : ?
YOUR ANSWER : ?

The temperature at which both liquid and gas phases are identical, is called the __________ point.

Boiling

Triple

Freezing

Critical

TRUE ANSWER : ?
YOUR ANSWER : ?

Heating of water under atmospheric pressure is an __________ process.

Isochoric

Isobaric

Adiabatic

Isothermal

TRUE ANSWER : ?
YOUR ANSWER : ?

Compressibility factor of a gas is

Not a function of its pressure

Not a function of its temperature

Not a function of its nature

Unity, if it follows PV = nRT

TRUE ANSWER : ?
YOUR ANSWER : ?

For an incompressible fluid, the __________ is a function of both pressure as well as temperature.

Internal energy

Entropy

All of these

Enthalpy

TRUE ANSWER : ?
YOUR ANSWER : ?

For an exothremic reaction

Only enthalpy change (ΔH) is negative

Only internal energy change (ΔE) is negative

Enthalpy change is zero

Both ΔH and ΔE are negative

TRUE ANSWER : ?
YOUR ANSWER : ?

For the reversible exothermic reaction, N₂ + 3H₂ ⇋ 2NH₃, increase of pressure would

Give higher yield of NH₃

Both B and C

Shift the equilibrium towards right

Neither A nor B

TRUE ANSWER : ?
YOUR ANSWER : ?

Fundamental principle of refrigeration is based on the __________ law of thermodynamics.

Third

Zeroth

Second

First

TRUE ANSWER : ?
YOUR ANSWER : ?

Isobaric process means a constant process.

Pressure

Entropy

Volume

Temperature

TRUE ANSWER : ?
YOUR ANSWER : ?

In jet refrigerators, the refrigerating fluid is practically always

Freon

Brine

Ammonia

Water

TRUE ANSWER : ?
YOUR ANSWER : ?

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