Question

What is the order of reaction with respect to a and b for a reaction that obeys the rate law: rate = k[a]4[b]5?

Answer 1

The order of reaction with respect to a is 4 and with respect to b is 5 for a reaction that obeys the rate law.

The order of reaction is equal sum of power of concentration of the each reactant present in the reaction  that obeys the rate law . The order of individual reactant or species present in the rate law is equal to the power of the of concentration of the respective species or reactant .

Example : If rate law is given as,

rate = k$[a]^{4} [b]^{5}$

The order of reaction with respect to a is 4 and with respect to b is 5 for a reaction that obeys the rate law.

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