Enthalpy of formation and enthalpy of solution of magnesium sulfate
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Dear sea friends, does anyone know the enthalpy of formation and enthalpy of dissolution of magnesium sulfate? If anyone knows, please share. Thank you!
The enthalpy of formation of magnesium sulfate generally refers to the amount of heat released or absorbed when it is formed from its most stable elemental forms through a chemical reaction. For magnesium sulfate (MgSO4), its standard enthalpy of formation (ΔHf°) is approximately -1280 kJ/mol. Furthermore, the heat effect of magnesium sulfate dissolving in water is called the heat of solution. Magnesium sulfate releases heat when dissolved in water, indicating that it is an exothermic reaction. The heat of solution varies for different forms of magnesium sulfate (such as anhydrous and heptahydrate). For example, the enthalpy of solution of magnesium sulfate heptahydrate (MgSO4·7H2O) is approximately -91 kJ/mol. .
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Thank you! May I ask further: What is the heat of solution of anhydrous magnesium sulfate in water?