Solution:-{:[A+Blongrightarrow^(K_(2))^(K_(1))I_(1)+I_(2)" (fast) "],[I_(1)+Blongrightarrow^(k_(3))P_(1)+I_(2)" (slow) "],[2I_(2)longrightarrow^(k_(4))P_(2)]:}Rate of reaction must be calculated from{:[" Slow ste "P],[:.quad" Rate "=K_(3)[I_(1)]^(')[B]^(')longrightarrow(1)]:}since I_(1) is intermediate it must not involve in rate Law.From equilibrium equation" equilibrium constant "=(k_(1))/(k_(2))(K_(1))/(K_ ... See the full answer