18. The disappearance ratio of HBr in the gas phase reaction is 0.30l M s-1 at 1

Question

18. The disappearance ratio of HBr in the gas phase reaction is 0.30l M s-1 at 150 C. The reason for the appearance of Br2 is a) 1.66 b) 0.151 c) 0.0906 d) 0.602 e) 0.549 19. The decomposition reaction of So2c12 is as follows: SO2C12 (g)-SO2 (g) + C12 (g) The reaction is first order for SO2C12 and a constant ratio of 3.0 x 10-6 s-1 to 600K. The container is loaded with a pressure of 2.4 atm of SO2C12 at 600K. The partial pressure of SO2C12 at 3.0 x 105 s is a) 0.76 b) 2.2 c) 0.98 d) 0.29 e) 1.4 x 105 20. What is the unit of k for a second-order reaction? a) M/s b) M c) M-1s-1 d) M2 /s e) 1/M M s-1. The reaction is as follows: 2HBr (g) ? H2 (g) + Br2 (g) atm.

Explanation / Answer

18)

Here we divide the rate of disappearance of HBr by its coefficient. In the balanced equation to get the rate of the reaction:

0.301 M/s / 2

= 0.151 M/s

Option B is correct

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