The amount of heat for the reverse of a reaction will be equal but will have opposite sign.
eg. C (s) + O2 (g) → CO2 (g) H = – 393 KJ
CO2 (g) → C (s) + O2 (g) H = + 393 KJ
The amount of heat for the reverse of a reaction will be equal but will have opposite sign.
eg. C (s) + O2 (g) → CO2 (g) H = – 393 KJ
CO2 (g) → C (s) + O2 (g) H = + 393 KJ