Chemical Engineering Thermodynamics MCQs

Question 1

Rotary lime kiln is an example of a/an __________ system.

Accepted Answer

Open

Answer

Closed

Answer

Isolated

Answer

Non-thermodynamic

Question 2

Sound waves propagation in air exemplifies an __________ process.

Accepted Answer

Adiabatic

Answer

Isothermal

Answer

Isometric

Answer

None of these

Question 3

Which of the following exemplifies an adiabatic process?

Accepted Answer

Sudden bursting of a cycle tube

Answer

Melting of ice

Answer

Condensation of alcohol vapor

Answer

Evaporation of water

Question 4

4 kg moles of an ideal gas expands in vacuum spontaneously. The work done is

Accepted Answer

0

Answer

4 J

Answer

∞

Answer

8 J

Question 5

For a multicomponent system, the term chemical potential is equivalent to the

Accepted Answer

Partial molar free energy

Answer

Molal concentration difference

Answer

Molar free energy

Answer

Molar free energy change

Question 6

When liquid and vapour phase of multi-component system are in equilibrium (at a given temperature and pressure), then chemical potential of each component is

Accepted Answer

Same in both the phases

Answer

Zero in both the phases

Answer

More in liquid phase

Question 7

The partial pressure of each constituent present in an alloy is __________ the total vapor pressure exerted by the alloy.

Accepted Answer

Less than

Answer

Equal to

Answer

More than

Answer

Either B or C; depends on the type of alloy

Question 8

Pick out the extensive property out of the following.

Accepted Answer

Free energy

Answer

Surface tension

Answer

Specific heat

Answer

Refractive index

Question 9

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

Accepted Answer

Chemical potential

Answer

Latent heat of vaporisation

Answer

Molal boiling point

Answer

Heat capacity