Chemical Engineering Mcqs

In general, the specific heats of aqueous solutions _____________ with increase in the concentration of the solute?

(A) Increase
(B) Decrease
(C) Remain unchanged
(D) None of these

Submitted By :Ali Uppal

S.T.P. corresponds to _________________?

(A) 1 atm. absolute pressure & 15.5°C
(B) 760 mm Hg gauge pressure & 15.5°C
(C) 760 torr & 0°C
(D) 101.325 kPa gauge pressure & 15.5°C

Submitted By :Ali Uppal

The equilibrium data of component A in the two phases B and C are given below. The estimate of Y for X = 4 by fitting a quadratic expression of a form Y = mX2 for the above data is ____________________?

(A) 15.5
(B) 16
(C) 16.5
(D) 17

Submitted By :Ali Uppal

If pH value of a solution is 8, then its pOH value will be ____________________?

(A) 6
(B) 1
(C) 7
(D) 10

Submitted By :Ali Uppal

Average molecular weight of air is about ____________________?

(A) 21
(B) 29
(C) 23
(D) 79

Submitted By :Ali Uppal

Which of the following is not a unit of kinematic viscosity ?

(A) Poise
(B) Stoke
(C) cm2/second
(D) None of these

Submitted By :Ali Uppal

Isotopes are atoms having the same _____________________?

(A) Mass number
(B) Number of neutrons
(C) Atomic mass
(D) None of these

Submitted By :Ali Uppal

The heat capacity of most substances is greater for the _______________ state?

(A) Solid
(B) Liquid
(C) Gaseous
(D) None of these

Submitted By :Ali Uppal

The vapor pressures of benzene and toluene are 3 and 4/3 atmospheres respectively. A liquid feed of 0.4 moles of benzene and 0.6 moles of toluene is vaporised. Assuming that the products are in equilibrium, the vapor phase mole fraction of benzene is_________________?

(A) 0.4
(B) 0.6
(C) 0.8
(D) 0.2

Submitted By :Ali Uppal

A sugar solution containing _________________ percent sugar is equivalent to 1 Brix?

(A) 0.01
(B) 0.1
(C) 1
(D) 10

Submitted By :Ali Uppal

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