Consider the following reaction:
2Mg + 02 --> 2MgO Delta H = -1204kJ
Calculate the amount of heat transferred when 2.2g of Mg reacts at constant pressure.
How many grams of MgO are produced during an enthalpy change of -94.0kJ ?
How many kilojoules of heat are absorbed when 7.80g of MgO is decomposed into Mg and O2 at constant pressure?
Change of enthalpy of the reaction is investigated.