The statements in the following multiple choices deal with various aspects of re

Question

The statements in the following multiple choices deal with various aspects of reaction rates. Choose the statement which is true.


a) High mass makes heterogeneous catalysts more effective than high surface area.
b) Near the end of a reaction the instantaneous rate is higher than the average rate.
c) An average rate is calculated by dividing a concentration change by the reaction time.
d) Explosions are reactions with low rates.
e) Speeding up a fast step significantly increases the overall reaction rate.

Explanation / Answer

) Near the end of a reaction the instantaneous rate is higher than the average rate.

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