What is the rate constant for this reaction (1/sec)?? IM STUMPEDD :( :(?

Question

At a certain temperature the reaction

SO2Cl2 → SO2 + Cl2

is a first order reaction with t1/2 = 153.0 x 102 sec

What is the rate constant for this reaction (1/sec) ?


Enter a numeric answer only, do not include units in your answer

Answer 1

t1/2 = Ln2/k = 0.69315/k

k = 0.69315/(1.53x10^2) = 4.62 x 10^-5

Three significant figures.

Answer 2

rate constant(k) for a first order reaction in terms of t1/2 is given by:

k=0.693/t1/2 or log2/t1/2

and therefore ur answer will be:

k=0.693/153 x 102= 4.53 x 10 ^ -5