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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.

All Topics  9594

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
Correct Answer: μi = (∂F/∂ni)T, P, ni
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
Correct Answer: (T2 – T1)/T2
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
Correct Answer: Heat and work are both state function
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
Correct Answer: The distribution law
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
Correct Answer: T
A refrigeration cycle is the same as a _____________ cycle?
A Turbine
B Heat engine
C Reversed heat engine
D None of these
Correct Answer: Reversed heat engine
Gibbs free energy (F) is defined as__________________?
A F = E – TS
B F = H – TS
C F = H + TS
D F = E + TS
Correct Answer: F = H – TS
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
Correct Answer: Gibbs free energy
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
Correct Answer: Pressure and temperature must be kept below 5.2 atm. and – 57°C respectively
The compressibility factor for an ideal gas is 1. Its value for any other real gas is_______________?
A 1
B 1
C
D Either B. or C, depends on the nature of the gas
Correct Answer: Either B. or C, depends on the nature of the gas
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