What is the enthalpy of water?

On the other hand, the molecules in liquid water are held together by relatively strong hydrogen bonds, and its enthalpy of vaporization, 40.65 kJ/mol, is more than five times the energy required to heat the same quantity of water from 0 °C to 100 °C (cp = 75.3 J/K·mol).

What is the enthalpy of hydration for Br?

Absolute Enthalpies of Hydration of Gaseous Ions

What is the enthalpy of formation of H2O?

-292.740
Selected ATcT enthalpy of formation based on version 1.118 of the Thermochemical Network

What is the enthalpy change of hydration?

The hydration enthalpy is the enthalpy change when 1 mole of gaseous ions dissolve in sufficient water to give an infinitely dilute solution. Hydration enthalpies are always negative.

How does the equation for LiBr and H2O work?

To show that they are dissolved in water we can write (aq) after each. The (aq) shows that they are aqueous – dissolved in water. The equation for LiBr ( Lithium bromide and H2O sometimes isn’t considered a chemical reaction since it is easy to change the Li+ and Br- back to LiBr (just let the H2O evaporate).

What is the ideal enthalpy of water vapor?

Ideal Gas Enthalpy of Water Vapor (H2O) Enthalpy of Formation: -241,826 (kJ/kmol) Molecular Weight: 18.015 (kg/kmol)

How does the enthalpy of water change with temperature?

Follow the links for definitions of the terms specific enthalpy and entropy. The figures and tables below shows how water enthalpy and entropy changes with temperature (°C and °F) at water saturation pressure (which for practicle use, gives the same result as atmospheric pressure at temperatures < 100 °C (212°F)).

How to calculate the enthalpy of fusion of ice?

(The word fusion means the same thing as “melting.”) When 1 mol of ice, for example, is melted, we find from experiment that 6.01 kJ are needed. The molar enthalpy of fusion of ice is thus +6.01 kJ mol –1, and we can write