Chemical Engineering MCQs

6108 MCQs  (Page 574 of 611)

Attempt Chemical Engineering Quiz
Pick out the correct equation relating ‘F’ and ‘A’___________________?
A. F = a + pv
B. F = e + a
C. F = a – ts
D. F = a + ts
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A cylinder contains 640 gm of liquid oxygen. The volume occupied (in litres) by the oxygen, when it is released and brought to standard conditions (0°C, 760 mm Hg) will be _____________ litres?
A. 448
B. 224
C. 22.4
D. Data insufficient; can’t be computed
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In the decomposition of PCl5 represented by, PCl5 ⇌ PCl3 + Cl2, decrease in the pressure of the system will _____________ the degree of dissociation of PCl5?
A. Increase
B. Decrease
C. Not alter
D. None of these
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The ratio of equilibrium constants (Kp2/Kp1) at two different temperatures is given by____________________?
A. (r/δh) (1/t1 – 1/t2)
B. (δh/r) (1/t1 – 1/t2)
C. (δh/r) (1/t2 – 1/t1)
D. (1/r) (1/t1 – 1/t2)
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All gases during throttling process at atmospheric temperature and pressure show a cooling effect except__________________?
A. Co2
B. H2
C. O2
D. N2
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Compressibility factor-reduced pressure plot on reduced co-ordinates facilitates__________________?
A. Use of only one graph for all gases
B. Covering of wide range
C. Easier plotting
D. More accurate plotting
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At equilibrium condition, the chemical potential of a material in different phases in contact with each other is equal. The chemical potential for a real gas (μ) is given by (where, μ = standard chemical potential at unit fugacity (f° = 1 atm.) and the gas behaves ideally.) ?
A. Μ° + rt ln f
B. Μ°+ r ln f
C. Μ° + t ln f
D. Μ° + r/t ln f
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______________ Equation predicts the activity co-efficient from experimental data ?
A. Lewis-randall
B. Margules
C. Van laar
D. Both b. & c.
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Charles’ law for gases states that__________________?
A. V/t = constant
B. V ∝ 1/t
C. V ∝ 1/p
D. Pv/t = constant
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The theoretical minimum work required to separate one mole of a liquid mixture at 1 atm, containing 50 mole % each of n- heptane and n- octane into pure compounds each at 1 atm is__________________?
A. -2 rt ln 0.5
B. -rt ln 0.5
C. 0.5 rt
D. 2 rt
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Word of the Day
23 Jul
Aisle
a passage between rows of seats in a building such as a church or theatre, an aircraft, or train.
طویل تنگ راستہ، نشتوں کے درمیان راستہ

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