In the reaction 2A+B→A2B, if the concertation of A is doubled and that of B is halved, then the rate of the reaction will - Sri Chaitanya Infinity Learn Best Online Courses for NCERT Solutions, CBSE, ICSE, JEE, NEET, Olympiad and Class 6 to 12

$2 A + B \to A_{2} B$

$r_{1} = k {[A]}^{2} [B] ..... (i)$

When, $[A] = [2 A], [B] = [\frac{B}{2}]$

$r_{2} = k {[2 A]}^{2} [\frac{B}{2}] = k 4 {[A]}^{2} \frac{[B]}{2}$

$= k 2 {[A]}^{2} [B] = 2 r_{1} (∵ r_{1} = k {[A]}^{2} [B])$

$∴$ Rate of reaction is increased two times

In the reaction $2 A + B \to A_{2} B,$ if the concertation of A is doubled and that of B is halved, then the rate of the reaction will