For the chemical rection A ? B, it is found that the rate of the reaction quadruples when the concentration of A is doubled. If rate ? CAn, what must n be?
A.1?4
B.1
C.2
D.4
Category: Chemical Engineering Mcqs
The capillary rise or depression in a small diameter tube is
A.directly proportional to the surface tension
B.inversely proportional to the surface tension
C.directly proportional to the diameter of the tube
D.inversely proportional to the diameter of the tube
Smoking tendency of hydrocarbons of same carbon atoms present in kerosine is maximum for
A.Isoparaffins
B.Naphthenes
C.Aromatics
D.Paraffins
The equation ?m x T = constant represents
A.Wein’s Law
B.Kirchhoff’s law
C.Stefan Boltzmann’s law
D.None of the above
Nitriding of steel is done for
A.hardening the surface of steel
B.hardening the steel
C.softening the steel surface
D.softening the steel
Which would yield more energy when completely burned?
A.methane
B.ethane
C.propane
D.butane
In all naturally occurring uranium the isotopic abundance of fission fuel as U-235 is
A.99.29%
B.0.71%
C.10%
D.0.10%
Yellow phosphorus is converted to red phosphorus in covered retorts at a temperature of
A.250-450?C in absence of air
B.100-150?C in absence of air
C.1400-1450?C in absence of air
D.800-1000?C in absence of air
How deep can a diver descend in ocean water (?=64 lbf/ft3) without damaging his watch which willwithstand an absolute pressure of 80 lbf/in2?
A.146.9 ft
B.180 ft
C.1.02 ft
D.1.25 ft
