Standard molar formation enthalpies

(kJ/mol)

a (J/K・mol)

b (10⁻³ J/K²・mol)

c (10⁵ J/K・mol)

Ca²⁺ (aqueous)

−542.83

0.97

0

0

H₂O (liquid)

−285.84

75.48

0

0

CO₂ (gas)

−393.51

44.141

9.037

-8.535

CaCO₃ (solid)

−1206.87

104.516

21.924

-25.941

H⁺ (aqueous)

0

0