87. The rate law for a reaction is found to be Rate = k[A]2 [B]. Which of the following mechanisms gives this rate law?(A) I (B) II (C) III (D) I & II (E) II & III

83. Pentane, , boils at 35°C. Which of the followings is true about kinetic energy, Ek, and potential energy, Ep, when liquid pentane at 35°C is compared with pentane vapor at 35°C? (A) Ek(g) ＜ Ek(l)； Ep(g) ≈ Ep(l) (B) Ek(g) ＞ Ek(l)； Ep(g) ≈ Ep(l) (C) Ep(g) ＜ Ep(l)； Ek(g) ≈ Ek(l) (D) Ep(g) ＞ Ep(l)； Ek(g) ≈ Ek(l) (E) Ep(g) ≈ Ep(l)； Ek(g) ≈ Ek(l)

87. The rate law for a reaction is found to be Rate = k[A]² [B]. Which of the following mechanisms gives this rate law?

(A) I
(B) II
(C) III
(D) I & II
(E) II & III

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