Question

Direction:Solve the following items. Show complete solution.Express all enthalpy changes to kilojoules.

Use the data below to calculate ΔH°rxnfor the reaction MgO(s)+ CO2(g) àMgCO3(s). 

ΔH°f: MgO(s)= -602 kJ mol^-1, CO2(g)= -394 kJ mol^-1 and MgCO3(s)= -1096 kJ mol^-1

Answer 1

$ΔH°=-100kJmol^{-1}$