Question

The diagram below shows an energy level diagram for the formation of magnesium chloride. Study it and answer the questions that follow.

1. State the enthalpy changes represented by A,B,C
2. What is the relationship between ΔH_A, ΔH_B and ΔH_C. 

Answer 1

1. State the enthalpy changes represented by
   • A - Heat of solution
   • B- Lattice energy
   • C- Hydration energy
      
2. What is the relationship between ΔH_A, ΔH_BA and ΔH_C. 
   • ΔH_A =ΔH_B + ΔH_C

Answer 2

Enthalpy of combustion