Chemical Reaction Engineering
An endothermic second order reaction is carried out in an adiabatic plug flow reactor. The rate of heat generation is

Constant throughout the reactor
Maximum at the inlet of the reactor
Maximum at the exit of the reactor
Maximum at the centre of the reactor

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Chemical Reaction Engineering
For a heterogeneous catalytic reaction

The catalyst does not form an intermediate complex with the reactant
The surface of the catalyst does not play an important role during reaction
A relatively small amount of catalyst can cause the conversion of large amount of reactants which does not mean that catalyst concentration is important
Free energy of activation is lowered in the presence of catalyst, which remains unchanged at the end of reaction

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