Be sure to answer all parts Consider the reaction A B Produ

Be sure to answer all parts. Consider the reaction A + B Products From the following data obtained at a certain temperature, determine the order of the reaction. Enter the order with respect to A, the order with respect to B, and the overall reaction order A] (M) [BI (M) Rate (Mis) 1.50 |1.50 |3.20 × 10-1 1.50 | 2.50 | 3.20 × 10-1 3.00 | 1.50 | 6.40 × 10-1 Reaction

Solution

1)
see experiment 1 and 3:
[A] doubles
[B] is constant
rate doubles
so, order of A is 1

see experiment 1 and 2:
[A] is constant
[B] changes
rate is constant
so, order of B is 0

overall order = 1 + 0 = 1

Answer:
A: 1
B: 0
Reaction: 1

2)
Given:
T1 = 90 oC
=(90+273)K
= 363 K
T2 = 200 oC
=(200+273)K
= 473 K
K2/K1 = 0.2917/4.6*10^-4
Ea = 53.8 KJ/mol
= 53800 J/mol

use:
ln(K2/K1) = (Ea/R)*(1/T1 - 1/T2)
ln(K2/4.6*10^-4) = (53800.0/8.314)*(1/363.0 - 1/473.0)
ln(K2/4.6*10^-4) = 6471*(6.407*10^-4)
K2 = 2.91*10^-2 s-1
Answer: 2.91*10^-2 s-1