Learn about enthalpy of reaction and enthalpy change formula. Understand what Delta H is, the Delta H equation, and how to calculate the enthalpy of reaction.

Enthalpy (H) is a thermodynamic property that measures the heat content of a system at a fixed pressure. It is usually presented as the change in enthalpy (Δ H) rather than the absolute value of ...

What does enthalpy change mean? Learn the enthalpy change definition, the symbol, ways to calculate it, and see examples of its problems and solve them.

Learn how to calculate the molar enthalpy of reaction from formation enthalpies, and see examples that walk through sample problems step-by-step for you to improve your chemistry knowledge.

Discover what the standard enthalpy of formation is and understand how it is calculated. Find out the importance of the standard enthalpy of formation table.

What is bond enthalpy? See examples of various values of bond enthalpy in the bond enthalpy table and use them to calculate the enthalpy change of a reaction.

Learn about thermochemical equations. Understand what a thermochemical equation is, study how to write a thermochemical equation, and see several examples.

Learn about Hess's law, statement, equations, and rules. See Hess's law diagram/cycle and the example of how to use Hess's law to find enthalpy changes.

Bond dissociation energy, also known as an enthalpy change, is defined as the energy required to break a covalent bond by homolysis to form fragments or radical species and it is an endothermic ...

Learn about the heat of fusion. Understand what is formula for the heat of fusion and what is the heat of fusion equation. Discover the concept of vaporization.