Use the Arrhenius equation.
ln (k2/k1) = Ea(1/T1 - 1/T2)/R
Ea = 100 J/mol
k1 = 0.286 L/mol*s
T1 = 500 K
T2 = 490 K
solve for k2.
Post your work if you get stuck.
What is the rate constant of 490K if the reaction 2NOCl (g) → 2NO (g) + Cl2 (g) has
an Ea of 1.00 x 102 kJ/mol and a rate constant of 0.286 L/mol·s at 500K. What is
the rate constant at 490 K?
3 answers
Solution
Yes