Find ΔHrxn for the following reaction:
2CdS(s)+3O2(g)→2CdO(s)+2SO2(g)
Use the following reactions with known ΔH values:
2H2S(g)S(s,rhombic)CdO(s)+++O2(g)O2(g)H2S(g)→→→2S(s,rhombic)SO2(g)CdS(s)++2H2O(g)H2O(g)ΔH=−442.4 kJΔH=−296.8 kJΔH=−124.7 kJ
Express the energy to one decimal place and include the appropriate units.