Question

Write an expression for instantaneous rate of reaction:

2N₂O_(g) → 4NO_2(g) + O_2(g).

What is the order of reaction?

Answer 1

1. Expression for instantaneous rate of reaction:
   Rate of reaction = `- 1/2 ("d"["N"_2"O"])/"dt" = 1/4 ("d"["NO"_2])/("dt") = ("d"["O"_2])/"dt"`
2. The given reaction is of first order.