For two reactions

X(g) + Y(g) → Z(g) .....(1)

M(g) + N(g) → P(g), ......(2)

according to the collision theory, the ratio of squares of pre-exponential factors of reactions 2(A2) and 1(A1) at the same temperature, \(\left(\frac{A_2}{A_1}\right)^2\), is

Species	Mass (g/mol)	Diameter (nm)
X	5	0.3
Y	20	0.5
M	10	0.4
N	10	0.4