Anorganik kimyo

FeCl_{3 (k) +} aq  Fe ³⁺_(eritma) +3Cl^-_(eritma)
-339,50 -46,37 -166,81
H^o=|(-46,37+3(-166,81)|-(399,5)=-147,30 kJ/mol
2)fazaviy o’zgarishlar jara’yoni uchun
Na_(k)  Na_(g)
O 108,3
H^o =108,3- 0 = 108,3 kJ/mol
3)Ikki atomli molekulalarning atomlarga parchalanih jarayoni uchun
Cl_{2 (g)} 2Cl_(g)

1. 
   2(121,3)
   

H_{dissotsilanish}= 2(121,3)-o=242,6kJ/mol
4) ionlanish jarayoni uchun
H_(g) H⁺ + e^-
217,98 1536,2
H_ionlanish= 1536,2- 217,98=1318.22kJ/mol