The rate law for the reaction between chlorine and nitric oxide,
2NO(g) + Cl2(g) → 2NOCl(g),
is Rate = k[NO]²[Cl₂]. Which of the following changes will not alter the initial rate of the reaction?
A. decreasing the volume of the reaction system
B. increasing the volume of the reaction system
C. increasing the concentration of NOCl
D. running the reaction in a solvent rather than in the gas phase
E. increasing the concentration of chlorine gas
