Nicho priyathamApproved Tutor Answer11 Years agothe sum of powers of concentration of reactancts in rate equation is called order of rxnPLZ APPROVE
grenadeApproved Tutor Answer11 Years agoThe sum of the exponents (powers) of the concentration of reactants in the rate law expression is termed as order of that chemical reaction. exfor a first order r=k[A] here power is 1 thus first order rxn r=kpower of A is zero thus zero order reaction