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19 Nov 2019
What are possible units for the reaction rate? A. L middot mol^-1 middot s^-1 B. L^2 middot mol^-2 middot s^-1 C. s^-1 D. s^-2 E. mol middot L^-1 middot s^-1 2. Rate constant for a reaction is 4.65 L middot mol^-1 middot s^- 1. What is the overall order of the reaction? A. 0 B. 1 C. 2 D. 3 E. More information is needed to determine the overall order. 3. For the reaction A + 2B rightarrow C, which expression is correct? A. delta[C]/delta t = delta[A]/delta t B. delta[C]/delta t = 2 delta[B]/delta t C. delta[C]/delta t = -2 delta [B]/delta t D. delta [C]/delta t = - 1/2 delta [B]/delta t E. delta[C]/delta t = -1/2 delta [A]/delta t 4. For the overall chemical reaction shown here, which one of the following statements can be rightly assumed? 2H_2S(g) + O_2(g) rightarrow 2S(s) + 2H_2O(l) A. The reaction is third-order overall. B. The reaction is second-order overall. C. The rate law is: rate = k[H_2S]^2 [O_2]. D. The rate law is: rate = k[H_2S][O_2]. E. The rate law cannot be determined from the information given. The reaction A + 2B rightarrow products was found to have the rate law, rate = K[A][B]^2. While holding the concentration of A constant, the concentration of B is increased to three times its initial value. By what factor does the rate of reaction increase? A. 3 B. 6 C. 9 D. 27 E. 30
What are possible units for the reaction rate? A. L middot mol^-1 middot s^-1 B. L^2 middot mol^-2 middot s^-1 C. s^-1 D. s^-2 E. mol middot L^-1 middot s^-1 2. Rate constant for a reaction is 4.65 L middot mol^-1 middot s^- 1. What is the overall order of the reaction? A. 0 B. 1 C. 2 D. 3 E. More information is needed to determine the overall order. 3. For the reaction A + 2B rightarrow C, which expression is correct? A. delta[C]/delta t = delta[A]/delta t B. delta[C]/delta t = 2 delta[B]/delta t C. delta[C]/delta t = -2 delta [B]/delta t D. delta [C]/delta t = - 1/2 delta [B]/delta t E. delta[C]/delta t = -1/2 delta [A]/delta t 4. For the overall chemical reaction shown here, which one of the following statements can be rightly assumed? 2H_2S(g) + O_2(g) rightarrow 2S(s) + 2H_2O(l) A. The reaction is third-order overall. B. The reaction is second-order overall. C. The rate law is: rate = k[H_2S]^2 [O_2]. D. The rate law is: rate = k[H_2S][O_2]. E. The rate law cannot be determined from the information given. The reaction A + 2B rightarrow products was found to have the rate law, rate = K[A][B]^2. While holding the concentration of A constant, the concentration of B is increased to three times its initial value. By what factor does the rate of reaction increase? A. 3 B. 6 C. 9 D. 27 E. 30
Sixta KovacekLv2
31 Aug 2019