The correct answer is 8 times
V= 21 , then concentration = 2 times.
Assuming the law rate law as:
r 1 =k[SO2 ] 2 [O 2 ]r 2 =k[2SO 2 ] 2 [2SO 2 ]r 2
=8r1
reaction rate is the rate at which a chemical reaction moves forward. It is frequently described in terms of either the concentration of a reactant that is consumed in a unit of time or the concentration of a product that is generated in a unit of time (amount per unit volume). You may also define it in terms of how much of the reactants are used up or how much of the products are produced in a given amount of time. Consider, for illustration, a reaction where the balanced chemical equation is of the type A + 3B 2Z.
learn more about rate of reaction refer:
https://brainly.com/question/24795637
#SPJ4