If the rate constant of a reaction is k = 3 × 10-4 s-1, then what is the order of the reaction?
Answer & explanation
Correct answer: option 2
Unit of rate constant = (mole)1-n (litre)n-1 time-1 ......... (i)
where n = order of reaction
Given: k = 3 × 10-4 s-1
it also can be written as k = 3 × 10-4 (mole)0 (litre)0 s-1 ..........(ii)
comparing exponents from equation (i) and (ii), we get
1-n = 0
n = 1