chemical kinetics topic please help unimolecular decay

this is what information provided

1) The 1 st order rate constant of a gaseous unimolecular reaction (AB) is k1. But this unimolecular reaction happens through Lindeman mechanism, which is given below 2AA+AA+A2AABrateconstant=k1rateconstant=k1rateconstant=k2 If we assume the ideal gas behaviour, the concentration of A is proportional to the pressure of A The plot of k11 vs [A]1 gives slope of 4106Lmol1s1, and intercept of 81011s1. Th value of k1/k2 is 105Lmol1