[zerality]

Hi,

I need some advice on a 2 part problem:

3Fe3O4 + 8Al 9Fe +4Al203

a) Had to calculate change in enthalpy for the rx using enthalpies of formation in the back of our book. I calulated the answer as - 3353KJ

b) asks us to estimate the max temperature of a reaction mixture of 48.0 g Al and 154.5 g Fe304. We are to assume a yield of 80%, an effective heat capacity of the rx mixture and its surrounding sand (container) of .70J/g Celsiuis, an effective mass of the rx mixture and surrounding sand of 350 g and a 90% retention of heat contributing to th Temp change.

Where and how should I start