D Question 18 05 pts The following are initial rate data for

D Question 18 0.5 pts The following are initial rate data for Initial Initial Initial Rate 0.10 0.10 5.1 0.20 0.10 102 0.10 025 80. O The rate law is Rate KAIB O The rate law is Rate KAPB O The rate law is Rate KAPB O The rate law is Rate-KAB O The rate law is Rate . DQuestion 19 0.5 pts A group of CH 232 students in lab are investigating the reaction of 2 NO2 (g) 2 NO (g)+O2 (g) with a catalyst and determine the rate constant to be 13.2 and the pre-exponential factor to be 21( at 302.5 K. Determine the activation energy O 92x 101 J/mo O 18 x 104ml O 3.9 x102 J/mol O 12 x103 J/mol 0 78 x104 J/mo

Solution

Ans 18 : The rate law is Rate = k[A]¹[B]³

When the concentration of B is kept constant , and the concentration of A is doubled , so the rate of reaction also increases by the factor by 2 . So the order of reaction is 2 with respect to A.

When the concentration of A is kept constant , and that of B is increased by a factor of 2.5 times , then the rate of reaction is increased by a factor of 15.6 times

So the order of reaction is 3 with respect to B .