______________ explains the mechanism of catalysis?
		A. Activated complex theory
B. Collision theory
C. Thermodynamics
D. None of these
		A. Activated complex theory
B. Collision theory
C. Thermodynamics
D. None of these
		A. Suitable for gas phase reactions
B. Ideal at very low conversion
C. Same as plug flow reactor (PFR)
D. Same as ideal stirred tank reactor
		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. Elementary
B. Parallel
C. Consecutive
D. None of these
		A. 0
B. ∞
C. 1
D. -1
		A. Solid density
B. Pore volume
C. Surface area
D. All A., B. and C.
		A. Less when they are connected in series
B. More when they are connected in series
C. More when they are connected in parallel
D. Same whether they are connected in series or in parallel