Question

A rain in $50\%$ completed om shown and $75\%$ in d$4$ hours. Find the order of reaction :

Answer 1

50% reaction completes in 2 hours. That is, half life of reaction is 2 hours

$t_{\left(1/2\right)}$ = 2 hours. Also given that, $t_{\left(3/4\right)}$ = 4 hours

We can observe that,

$t_{\left(3/4\right)}=2\times t_{\left(1/2\right)}$

Thus relation holds true only in first order