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CBSE Class 12-science Answered

What is meant by the 'rate constant, k' of a reaction? If the concentration be expressed in mol L-1 units and time in seconds, what would be the units for k (i) for a zero order reaction and (ii) for a first order reaction?
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
answered-by-expert Expert Answer

Rate constant 'k' of a reaction is defined as the rate of reaction when the concentration of the reactant(s) is unity. / or Rate constant is the proportionality factor in the rate law.

(i) Unit for 'k' for a zero order reaction = mol L-1 s-1

(ii) Unit for 'k' for a first order reaction = s-1

Answered by | 04 Jun, 2014, 03:23: PM

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