What is the molar enthalpy
How do you find the molar enthalpy?
Molar enthalpy = DH/n. n = number of moles of reactant. So we convert the carefully measured mass in to moles by dividing by molar mass. C = concentration in “M” = moles/L.
What is molar enthalpy of solution?
The molar heat of solution (ΔHsoln) of a substance is the heat absorbed or released when one mole of the substance is dissolved in water.
Is enthalpy the same as molar enthalpy?
Enthalpy is due to heat flow at constant pressure. It can be related to molar enthalpy by division of the mols of the substance to which it refers. The change in molar enthalpy is intensive because the extensivity has been divided out through the mols.
What is the molar mass of fe2o3?
What is the molar enthalpy of water?
-285,820
Molar Enthalpy of Formation of Various Substances
| Substance | Formula | hfo [kJ/kmol] |
|---|---|---|
| Water | H2O(l) | -285,820 |
| Hydrogen peroxide | H2O2(g) | -136,310 |
| Ammonia | NH3(g) | -46,190 |
| Methane | CH4(g) | -74,850 |
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Jan 18, 2009
How do you convert molar enthalpy to enthalpy?
Is molar enthalpy a state function?
Internal energy, molar enthalpy are state function. Also, reversible expansion work is a state function because between given initial and final states, there can be only one reversible path.
What factors affect molar enthalpy?
Factors Affecting Enthalpy of Reaction
- Physical State of Reactants and Products. The enthalpy of reaction changes with change in physical state. …
- Quantity of Reactants. The change in enthalpy of reaction depends upon the quantity of reactants used. …
- Allotropic Modification. …
- Temperature and Pressure.