a. For the hydrogen€“bromine reaction presented in Problem P36.7, imagine initiating the reaction with only Br₂and H₂present. Demonstrate that the rate law expression at t = 0 reduces to

b. The activation energies for the rate constants are as follows:

Rate Constant€¦€¦€¦€¦€¦€¦€¦.ΔE_a (kJ/mol)

k₁€¦€¦€¦€¦€¦€¦€¦€¦€¦€¦€¦€¦€¦€¦..192

k₂€¦€¦€¦€¦€¦€¦€¦€¦€¦€¦€¦€¦€¦€¦..0

k₅€¦€¦€¦€¦€¦€¦€¦€¦€¦€¦€¦€¦€¦€¦..74

What is the overall activation energy for this reaction?

c. How much will the rate of the reaction change if the temperature is increased to 400.K from 298 K?

Transcribed Image Text:

d[HBr] 1/2 [H,],[Br, }? ks = 2k2 t=0 dt