Photosyntesis is a bio process by which planets make energy rich molecules from low energy molecules with the help of energy. From sunlight. The photosynthesis of glucose can be represented as :
`6CO_(2)(g)+6H_(2)O(g)+hvrarrC_(6)H_(12)O(s)+60_(2)(g)`
Electrochemical oxidation of glucoses to `CO_(2)` and `H_(2)O.` which is the reverse of photosyhnthesis, is an impottaint reaction and it can be used in the construction of a fuel cell. In a fule cell, a working substance celled fule is electrochemiclly oxidised by `O_(2)`
`C_(6)H_(12)O_(6)+6HOrarr24_(e)^(-)+24H^(+)+6CO_(2)`
Calculate the approximate standard emf of this fuel cell at `27^(@)C` if `DeltaH^(@)` and `DeltaS^(@)` of above photosynthesis reaction are `-3xx10^(6)Jmol^(-1)` and `200 JK^(-1)mol^(-1)`respectively :
A. `1.5` volt
B. 1 volt
C. `4.5` volt
D. `3` volt
