Chemical Engineering Mcqs

Chemical potential of ith component of a system is given by________________?

(A) μi = (∂F/∂ni)T, P, ni
(B) μi = (∂A/∂ni)T, P, ni
(C) μi = (∂F/∂ni)T, P
(D) μi = (∂A/∂ni)T, P

Submitted By :Ali Uppal

Efficiency of a Carnot engine working between temperatures T1 and T2 (T1 < T) is ________________?

(A) (T2 – T1)/T2
(B) (T2 – T1)/T1
(C) (T1 – T2)/T2
(D) (T1 – T2)/T1

Submitted By :Ali Uppal

Pick out the wrong statement_________________?

(A) Phase rule variables are intensive properties
(B) Heat and work are both state function
(C) The work done by expansion of a gas in vacuum is zero
(D) CP and CV are state function

Submitted By :Ali Uppal

A solute distributes itself between two non-miscible solvents in contact with each other in such a way that, at a constant temperature, the ratio of its concentrations in two layers is constant, irrespective of its total amount”. This is_________________?

(A) The distribution law
(B) Followed from Margules equation
(C) A corollary of Henry’s law
(D) None of these

Submitted By :Ali Uppal

The partial molar enthalpy of a component in an ideal binary gas mixture of composition Z, at a temperature T and pressure P, is a function only of________________?

(A) T
(B) T and P
(C) T, P and Z
(D) T and Z

Submitted By :Ali Uppal

A refrigeration cycle is the same as a _____________ cycle?

(A) Turbine
(B) Heat engine
(C) Reversed heat engine
(D) None of these

Submitted By :Ali Uppal

Gibbs free energy (F) is defined as__________________?

(A) F = E – TS
(B) F = H – TS
(C) F = H + TS
(D) F = E + TS

Submitted By :Ali Uppal

The change in __________ is equal to the reversible work for compression in steady state flow process under isothermal condition?

(A) Internal energy
(B) Enthalpy
(C) Gibbs free energy
(D) Helmholtz free energy

Submitted By :Ali Uppal

Choose the condition that must be specified in order to liquify CO2 (triple point for CO2 is – 57°C and 5.2 atm) ?

(A) Pressure must be kept below 5.2 atm
(B) Temperature must be kept above – 57°C
(C) Pressure must be kept below 5.2 atm. and temperature must be kept above 57°C
(D) Pressure and temperature must be kept below 5.2 atm. and – 57°C respectively

Submitted By :Ali Uppal

Reduced pressure of a gas is the ratio of its__________________?

(A) Pressure to critical pressure
(B) Critical pressure to pressure
(C) Pressure to pseudocritical pressure
(D) Pseudocritical pressure to pressure

Submitted By :Ali Uppal

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