X2 + Y2 ➔ X2Y2 rate = k[X2] A reaction and its experimentally determined rate law are represented ab — Kinetics Chemistry Question
Question
X2 + Y2 ➔ X2Y2
rate = k[X2]
A reaction and its experimentally determined rate law are represented above. A chemist proposes two different possible mechanisms for the reaction, which are given below.
Mechanism 1
X2 ➔ 2 X (slow)
X + Y2 ➔ XY2 (fast)
X + XY2 ➔ X2Y2 (fast)
Mechanism 2
X2 ➔ 2 X (slow)
X + Y2 ➔ XY + Y (fast)
X + XY ➔ X2Y (fast)
X2Y + Y ➔ X2Y2 (fast)
Based on the information above, which of the following is true?
A.
Only mechanism 1 is consistent with the rate law.
B.
Only mechanism 2 is consistent with the rate law.
C.✓ Correct
Both mechanism 1 and mechanism 2 are consistent with the rate law.
D.
Neither mechanism 1 nor mechanism 2 is consistent with the rate law.
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