Chemical Engineering Thermodynamics MCQs

Question 1

Trouton's ratio of __________ liquids is calculated using Kistyakowsky equation.

Accepted Answer

Non-polar

Answer

Polar

Answer

Both A & B

Answer

Neither A nor B

Question 2

The heat capacities for the ideal gas state depend upon the

Accepted Answer

Temperature

Answer

Pressure

Answer

Both A & B

Answer

Neither A nor B

Question 3

An ideal liquid refrigerant should

Accepted Answer

Both A and B

Answer

Not have a subatmospheric vapour pressure at the temperature in the refrigerator coils

Answer

Not have unduly high vapour pressure at the condenser temperature

Answer

Have low specific heat

Question 4

One mole of nitrogen at 8 bar and 600 K is contained in a piston-cylinder arrangement. It is brought to 1 bar isothermally against a resisting pressure of 1 bar. The work done (in Joules) by the gas is

Accepted Answer

10373

Answer

30554

Answer

4988.4

Answer

4364.9

Question 5

Dry ice is

Accepted Answer

Solid carbon dioxide

Answer

Moisture free ice

Answer

Solid helium

Answer

None of these

Question 6

Compressibility factor-reduced pressure plot on reduced co-ordinates facilitates

Accepted Answer

Use of only one graph for all gases

Answer

Covering of wide range

Answer

Easier plotting

Answer

More accurate plotting

Question 7

Entropy of a substance remains constant during a/an __________ change.

Accepted Answer

Reversible adiabatic

Answer

Reversible isothermal

Answer

Irreversible isothermal

Answer

None of these

Question 8

Which of the following is a thermodynamic property of a system?

Accepted Answer

Entropy

Answer

Concentration

Answer

Mass

Answer

Temperature

Question 9

Third law of thermodynamics is concerned with the

Accepted Answer

Value of absolute entropy

Answer

Energy transfer

Answer

Direction of energy transfer

Answer

None of these