The reaction that you will be investigating is the reaction that occurs when an Alka-Seltzer tablet is placed into a given amount of water.


C(graphite) + O2(g) → CO2(g) + 94.05 kcal


C(diamond) + O2(g) → CO2(g) + 94.50 kcal


What could you infer from the information given above?


-The enthalpy of CO2is greater than the reactants.

-E2- E1is negative.

-Graphite and diamond have equal enthalpy.

-Diamond must have lower internal energy.