Correct Answer - Certain amount of activation energy is essential even for such reactions which are thermodynamically feasible, therefore heating is required.
this is explained on the basis of `K_(eq)` the equilibrium constant in the given redox reaction , all reactants and products and Hence the reactions does not ovcure sat RT At High temparture Cr Melt and values of TAS increase As a result the value of
`Delta _(t)G^(Theta)` Becomes more nagative an hence the reaction procedds rapidly .
