Rte constant 'k' for a certain reaction is \(k = 2.3 × 10^{−5}\) L mol⁻¹ s⁻1. Order of the reaction is:

2

Rate of the reaction is given by,

Rate=k × [A]^x, where x is the order of reaction

\(\left(\frac{mol}{L}\right)^2 = 2.3 × 10^{−5}L (mol^{−1})(s^{−1})[A]^x\)

\(\left(\frac{mol}{L}\right)^2 = \text{ constant } (s^{−1})\left(\frac{mol}{L}\right)^x\)

Therefore, x=2 and the reaction is second order