The enthalpy of mixing (also called heat of mixing) is the heat that is taken up or released upon mixing of two (non-reactive) chemical substances. When the enthalpy of mixing is positive, mixing is endothermic while negative enthalpy of mixing signifies exothermic mixing. In ideal mixtures the enthalpy of mixing is null.
A well-known approximation for calculating the heat of mixing is Flory–Huggins solution theory.
Famous quotes containing the word mixing:
“Give me Catholicism every time. Father Cheeryble with his thurible; Father Chatterjee with his liturgy. What fun they have with all their charades and conundrums! If it weren’t for the Christianity they insist on mixing in with it, I’d be converted tomorrow.”
—Aldous Huxley (1894–1963)