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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

Clausius-Clapeyron equation is applicable to _____________ equilibrium processes?
A Solid-vapor
B Solid-liquid
C Liquid-vapor
D All A, B. and C
Correct Answer: All A, B. and C
Mollier chart is a _____________ plot?
A Pressure vs. enthalpy
B Pressure vs. volume
C Enthalpy vs. entropy
D Temperature vs. entropy
Correct Answer: Enthalpy vs. entropy
The four properties of a system viz. P, V, T, S are related by ______________ equation?
A Gibbs-Duhem
B Gibbs-Helmholtz
C Maxwell’s
D None of these
Correct Answer: Maxwell’s
During a reversible isothermal expansion of an ideal gas, the entropy change is___________________?
A +ve
B 0
C -ve
D ∞
Correct Answer: +ve
Translational kinetic energy of molecules of an ideal gas is proportional to (where, T = absolute temperature of the gas)__________________?
A T
B √T
C T2
D 1/√T
Correct Answer: T
A two stage compressor is used to compress an ideal gas. The gas is cooled to the initial temperature after each stage. The intermediate pressure for the minimum total work requirement should be equal to the _____________ mean of P1 and P2.(where, P1 and P2 are initial and final pressures respectively) ?
A Logarithmic
B Arithmetic
C Geometric
D Harmonic
Correct Answer: Geometric
In the reaction, H2 +I2 ⇌ 2HI, addition of an inert gas will___________________?
A Increase the partial pressure of H2
B Increase the partial pressure of I2
C Increase the total pressure and hence shift the equilibrium towards the right
D Not affect the equilibrium conditions
Correct Answer: Not affect the equilibrium conditions
As pressure approaches zero, the ratio of fugacity to pressure (f/P) for a gas approaches____________________?
A Zero
B Unity
C Infinity
D An indeterminate value
Correct Answer: Unity
A solid metallic block weighing 5 kg has an initial temperature of 500°C. 40 kg of water initially at 25°C is contained in a perfectly insulated tank. The metallic block is brought into contact with water. Both of them come to equilibrium. Specific heat of block material is 0.4 kJ.kg-1. K-1. Ignoring the effect of expansion and contraction and also the heat capacity to tank, the total entropy change in kJ.kg-1, K-1 is_________________?
A -1.87
B 0
C 1.26
D 3.91
Correct Answer: 0
If the internal energy of an ideal gas decreases by the same amount as the work done by the system, then the____________________?
A Process must be isobaric
B Temperature must decrease
C Process must be adiabatic
D Both B. and C.
Correct Answer: Both B. and C.
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