Which of the following would have a positive value for Delta S? 2 H_2O(g) righta

Question

Which of the following would have a positive value for Delta S? 2 H_2O(g) rightarrow 2 H_2(g) + O_2(g) N_2(g) + 3 H_2(g) rightarrow 2 NH_3(g) CO_2(g) + H_2(g) rightarrow CO(g) + H_2O(g) H_2O(l) rightarrow H_2O(s) None of these reactions would have a positive Delta S. Which statement is true if the following reaction is spontaneous as written? Zn(s) + Cu^2+ (aq) rightarrow Zn^2+ (aq) + Cu(s) K_c is larger than 1, Delta G degree is negative, and E degree is positive K_c is larger than 1, Delta G degree is positive, and E degree is negative. K_c is larger than 1, Delta G degree is negative, and E degree is negative. K_c is smaller than 1, Delta G degree is negative, and E degree is positive. K_c is smaller than 1, Delta G degree is positive, and E degree is negative. Which of the following rate laws suggests that the reaction probably occurs in a single step? NO(g) + O_2(g) rightarrow NO_2(g) + O(g) rate = k[NO][O_2] H_2(g0 + Br_2(g) rightarrow 2 HBr(g) rate = k[H_2][Br_2] (CH_3)_3CBr + OH^- rightarrow (CH_3)_3CHO + Br^- rate = k[(CH_3)_3CBr] H_2O_2 + 3 I^- + 2 H^+ rightarrow I^-_3 + 2 H_2O rate = k_1[H_2O_2][I^-]+K_2[H_2O_2][I^-][H^+]

Explanation / Answer

6   A

7 A

8 A

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