The decomposition of dinitrogen pentaoxide has an activation energy of 102 kJ/mol and ΔH°rxn = + 55 kJ/mol. What is the

[answerhappygod]

The decomposition of dinitrogen pentaoxide has an activationenergy of 102 kJ/mol and ΔH°rxn = + 55 kJ/mol.
What is the activation energy for the reverse reaction?
Select one:
a. 27 kJ/mol
b. 47 kJ/mol
c. 55 kJ/mol
d. 102 kJ/mol
e. More information is needed, since this is a Hess' Lawcalculation.
A rate constant obeys the Arrhenius equation, thefactor A being 2.2 ×1013 s-1 and the activation energybeing 150. kJ mol-1. What is the value of the rateconstant at 227°C, in s-1?
Select one:
a.2.1 × 1013 s-1
b.6.7 × 10-22 s-1
c.1.5 × 1011 s-1
d.4.7 × 10-3 s-1
e.None of these choices is correct.