M C Q s D r i v e

Chemical Engineering Mcqs 9594 MCQs [All-Courses]

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Chemical Engineering MCQs designed for job test and interview preparation, particularly for fresh graduates, students, and candidates appearing in competitive exams. These multiple-choice questions cover important topics such as the fundamentals of chemical engineering, chemical processes, chemical reactions, process control, and instrumentation, along with other key concepts in the field.

Co-efficient of performance for a reversed Carnot cycle working between temperatures T1 and T2 (T1 > T2) is ___________________?
A T2/(T1 – T2)
B T1/(T1 – T2)
C (T1 – T2)/T1
D (T1 – T2)/T2
Correct Answer: T2/(T1 – T2)
Joule-Thomson co-efficient is defined as__________________?
A μ = (∂P/∂T)H
B μ = (∂T/∂P)H
C μ = (∂E/∂T)H
D μ = (∂E/∂P)H
Correct Answer: μ = (∂T/∂P)H
Work done is a____________________?
A Property of the system
B Path function
C Point function
D State description of a system
Correct Answer: Path function
The value of Joule-Thomson co-efficient, in case where cooling occurs after the throttling process is________________?
A 0
B
C +ve
D -ve
Correct Answer: +ve
For a constant pressure reversible process, the enthalpy change (ΔH) of the system is___________________?
A Cv.dT
B Cp.dT
C ∫ Cp.dT
D ∫ Cv.dT
Correct Answer: Cp.dT
During Joule-Thomson expansion of gases_________________?
A Enthalpy remains constant
B Entropy remains constant
C Temperature remains constant
D None of these
Correct Answer: Enthalpy remains constant
When pressure is applied on the system, ice ↔ water, then_________________?
A Equilibrium cannot be established
B More ice will be formed
C More water will be formed
D Evaporation of water will take place
Correct Answer: More water will be formed
The equilibrium constant for a chemical reaction at two different temperatures is given by__________________?
A Kp2/Kp1 = – (ΔH/R) (1/T2 – 1/T1)
B Kp2/Kp1 = (ΔH/R) (1/T2 – 1/T1)
C Kp2/Kp1 = ΔH (1/T2 – 1/T1)
D Kp2/Kp1 = – (1/R) (1/T2 – 1/T1)
Correct Answer: Kp2/Kp1 = – (ΔH/R) (1/T2 – 1/T1)
In an irreversible process________________?
A Tds = dE – dW = 0
B dE – dW – Tds = 0
C Tds – dE + dW < 0
D Tds – dT + dW < 0
Correct Answer: Tds – dE + dW < 0
A domestic refrigerator has a/an ____________ cooled condenser?
A Water
B Air
C Evaporative
D Gas
Correct Answer: Air