Chemical Engineering MCQs

6108 MCQs (Page 552 of 611)

Attempt Chemical Engineering Quiz

If an ideal solution is formed by mixing two pure liquids in any proportion, then the ___________________ of mixing is zero?

A. Enthalpy
B. Volume
C. Both a. & b.
D. Neither a nor b

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Entropy is a/an___________________?

A. State function
B. Macroscopic property
C. Extensive property
D. None of these

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Isentropic process means a constant _____________________ process ?

A. Enthalpy
B. Pressure
C. Entropy
D. None of these

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For an ideal solution, the value of activity co-efficient is______________________?

A. 0
B. 1
C. 1

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Heat pump_______________________?

A. Accomplishes only space heating in winter
B. Accomplishes only space cooling in summer
C. Accomplishes both a. and b
D. Works on carnot cycle

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The equation Tds = dE – PdV applies to___________________?

A. Single phase fluid of varying composition
B. Single phase fluid of constant composition
C. Open as well as closed systems
D. Both b. and c

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Throttling (Joule-Thomson effect) process is a constant _____________ process?

A. Enthalpy
B. Entropy
C. Pressure
D. None of these

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Number of degrees of freedom for a three phase system in equilibrium comprising of three non-reacting chemical species is__________________?

A. 2
B. 0
C. 1
D. 3

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What is the value of maximum COP in case of absorption refrigeration, if refrigeration provided is at temperature, TR (where, T1 and T2 are source & surrounding temperatures respectively.) ?

A. Tr/(t2 – tr) × (t1 – t2)/t1
B. Tr/(t2 – tr) × t1/(t1 – t2)
C. Tr/(t1 – tr) × (t1 – t2)/t1
D. None of these

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Gibbs-Duhem equation_____________________?

A. States that n1dμ1 + n2dμ2 + ….njdμj = 0, for a system of definite composition at constant
TemPerature and pressure
B. Applies only to binary systems
C. Finds no application in gas-liquid equilibria involved in distillation

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