Question

Question #fec87

Answer 1

If you specified the data related to enthalpy and entropy, we could calculate the free energy change via,

`DeltaG = DeltaH^° - TDeltaS`

But you want to make it hard for me! Let's calculate the enthalpy and entropy of the reaction you specified,

`N_2O_4(g) to 2NO_2(g)`, where

`DeltaH° = 58kJ`

`DeltaS = (176J)/K`

assuming that dinitrogen tetroxide is a gas.

Hence,

`DeltaG° = 58*10^3 J - 298K * (176J)/K`
`therefore DeltaG° = 5.6kJ`