Consider the aqueous reaction
A(aq)+2B(aq)→products
which obeys the rate law
rate=k[A]2[B]
A chemist investigates how various planned concentration adjustments will affect the reaction rate. The temperature is held constant, so k does not change. The initial rate under the original concentrations is denoted r0.
Planned concentration changes (relative to original):
(a) For plan (i), determine the factor by which the rate changes and the percentage change relative to r0.
(b) Repeat the calculations for plan (ii).
(c) Repeat the calculations for plan (iii).
(d) Among the three plans, identify which produces the greatest absolute increase in rate and explain why in two or three sentences, referring specifically to the reaction orders.