The initial rate of a reaction obeying the rate law is measured

CHEMISTRY · Single correct · AP · Chemistry · Kinetics · Kinetics

Problem

The initial rate of a reaction obeying the rate law rate=k[X]12[Y]rate = k[X]^{\frac{1}{2}}[Y] is measured. If the initial concentrations of both X and Y are doubled, which statement best describes the change in the initial rate? (a) It doubles. (b) It increases by a factor of 8. (c) It increases by a factor of 23/22^{3/2} (about 2.82.8). (d) It quadruples.

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