Chemical Engineering Mcqs

With increase in temperature, the internal energy of a substance___________________?

(A) Increases
(B) Decreases
(C) Remains unchanged
(D) May increase or decrease; depends on the substance

Submitted By :Ali Uppal

(∂H/∂T)P is the mathematical expression for____________________?

(A) CV
(B) Entropy change
(C) Gibbs free energy
(D) None of these

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Which of the following is not an equation of state ?

(A) Bertholet equation
(B) Clausius-Clapeyron equation
(C) Beattie-Bridgeman equation
(D) None of these

Submitted By :Ali Uppal

The melting point of paraffin wax (which contracts on solidification) _______________ with pressure rise?

(A) Increases
(B) Decreases
(C) Remains unchanged
(D) Decreases linearly

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In a P-V diagram (for an ideal gas), an isothermal curve will coincide within adiabatic curve (through a point), when___________________?

(A) Cp < Cv
(B) Cp = Cv
(C) Cp > Cv
(D) C ≥ Cv

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The internal energy of an ideal gas does not change in a reversible _____________ process?

(A) Isothermal
(B) Adiabatic
(C) Isobaric
(D) Isometric

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Which of the following decreases with increase in pressure ?

(A) Melting point of ice
(B) Melting point of wax
(C) Boiling point of liquids
(D) None of these

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Near their critical temperatures, all gases occupy volumes _____________ that of the ideal gas?

(A) Less than
(B) Same as
(C) More than
(D) Half

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Boiling of liquid is accompanied with increase in the__________________?

(A) Vapor pressure
(B) Specific Gibbs free energy
(C) Specific entropy
(D) All (A),

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Refrigeration capacity of a household refrigerator may be round about _____________ tons?

(A) 0.15
(B) 1.5
(C) 4.5
(D) 6.5

Submitted By :Ali Uppal

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