Question

`C_(2)H_(4) +CI_(2) rarr C_(2)H_(4)CI_(2)`
`DeltaH =- 270.6 kJ mol^(-1)K^(-1), DeltaS =- 139 J`
a. Is the reaction favoured by entropy, enthalpy both or none?
b. Find `DeltaG` if `T = 300K`.

Answer 1

(i). Since, `DeltaH=-ve`, exothermic and is favoured, i.e., it will be spontaneous
`=-270.6xx1000-300xx(-139)`
`=-228900J`
`=-228.9kJ`