Query in Chemical Kinetics
Experimetally :- one reactant is kept constant and concentration of other is changed  and accordingly rate of reaction is measured...then dependence with thta reactant is measured.....and then other one  is kept  constant and ist one is changed then  similarly rate of reaction and thus dependence is measured....... We cant determine the actual dependence of rate of reaction on the concentration of reactants therotically ......we have tk calculate it and then we can formulate the rate law or order of reaction