Chemical Engineering MCQs

A. Pressure and temperature only
B. Temperature and composition only
C. Pressure and composition only
D. Pressure, temperature and composition

A. Film
B. Ash layer
C. Pore
D. None of these

A. Ca0/2k
B. Ca0/k
C. 0.693/k
D. 1/k

A. A highly exothermic reaction is to be controlled
B. Undesirable side reaction (at high concentration of one of the reactants) is to be avoided
C. A gas is to be reacted with liquid (e.g. hydrogenation of fat)
D. All a., b., and c.

A. More
B. Less
C. Same
D. Either a. or b., depends on order of reaction

A. Solid density
B. Pore volume
C. Surface area
D. All a., b. and c.

A. Water will evaporate
B. Equilibrium will not be attained
C. More ice will be formed
D. More water will be formed

A. Catalyst
B. Temperature
C. Reactant’s concentration
D. Number of molecules of reactants taking part in the reaction

A. Catalyst size is reduced or the catalyst diffusivity is reduced
B. Catalyst size is reduced or the catalyst diffusivity is increased
C. Catalyst size is increased or the catalyst diffusivity is reduced
D. Catalyst size is increased or the catalyst diffusivity is increased

A. D(vca)/dt = -f (caf – ca) – kca2v
B. D(vca)/dt = f (caf – ca) – kca2v
C. D(vca)/dt = -fca – kca2v
D. D(vca)/dt = fcaf – kca2v