For a second order reaction, the un...
Question

# For a second order reaction, the unit of the rate constant (k) is : A time-1 B mol L time-1 C Lmol-1 time-1 D L’ mol-2 time?

JEE/Engineering Exams
Chemistry
Solution
183
4.0 (1 ratings)
If the reaction is second order, then two units of concentration are already present so the rate constant needs reciprocal time plus inverse units of concentration, L mol ( ^{-1} s^{-1} ). If the reaction is third order, the rate constant should have units of ( L^{2} mathrm{mol}^{-2} mathrm{s}^{-1} ).