When there are two substrates in a reaction,the reaction is said to be second order if ________.
A)the reaction is first order with respect to each substrate concentration
B)the maximum rate is independent of either substrate's concentration
C)the substrate concentrations are equal
D)it proceeds at twice the rate upon double the concentrations of both substrates

Question

Quizplus · Accepted Answer

A second order reaction means that the rate of the reaction is dependent on the concentration of two reactants, and the rate equation has a second order term. In order for this to be true, the reaction must be first order with respect to each substrate concentration, meaning that if the concentration of one substrate is doubled while the other remains constant, the rate of the reaction will double. Therefore, choice A is the best choice.

When There Are Two Substrates in a Reaction,the Reaction Is