A catalyst increases the rate of chemical reaction by providing an alternative reaction pathway which lowers the activation energy than the reaction pathway in its absence. A catalyst is not consumed and therefore does not appear in the chemical equation for the reaction. A homogenous catalyst is in the same phase as the ractants whilst a heterogeneous catalyst is in a different phase. The complex [Co(NH_(3))_(3)F]^(2+)+H_(2)Oto[Co(NH_(3))_(5)(H_(2)O)+F^(-)]^(3+) and Rate =k["complex"]^(a).[H^(+)]^(b) The reaction is acid catalysed , i.e. [H^(+)] does not change during the reaction . Thus, rate =k'["complex"] where, k'=[H^(+)]^(b) If 'a' is the initial concentration and k is the rate constant of a zero order reaction , the time for the reaction to go to completion will be

A catalyst increases the rate of chemical reaction by providing an alt

1.	A catalyst increases the rate of chemical reaction by providing an alternative reaction pathway which lowers the activation energy than the reaction pathway in its absence. A catalyst is not consumed and therefore does not appear in the chemical equation for the reaction. A homogenous catalyst is in the same phase as the ractants whilst a heterogeneous catalyst is in a different phase. The complex [Co(NH_(3))_(3)F]^(2+)+H_(2)Oto[Co(NH_(3))_(5)(H_(2)O)+F^(-)]^(3+) and Rate =k["complex"]^(a).[H^(+)]^(b) The reaction is acid catalysed , i.e. [H^(+)] does not change during the reaction . Thus, rate =k'["complex"] where, k'=[H^(+)]^(b) If 'a' is the initial concentration and k is the rate constant of a zero order reaction , the time for the reaction to go to completion will be
Answer» `(K)/(a)` `(a)/(k)` `(a)/(2K)` `(k)/(2A)` ANSWER :B