The initial-rate data below were obtained for the reaction with present in large…
CHEMISTRY · Single correct · A Level · Chemistry · Rate equations · Rate equations
Problem
The initial-rate data below were obtained for the reaction A+2B→products with [B] present in large excess so that its concentration remains effectively constant during the measurements.
Experiments (constant [B]):
1. [A]=0.100M, rate =2.5×10−4Ms−1
2. [A]=0.200M, rate =7.1×10−4Ms−1
3. [A]=0.400M, rate =2.0×10−3Ms−1
Based on these data, what is the most likely reaction order with respect to A?
(a) Half order
(b) 23 order
(c) First order
(d) Second order