Enthalpy and Thermodynamics in Chemistry

These flashcards cover key concepts related to enthalpy and thermodynamics from your chemistry lecture notes.

Activation Energy (E_a)

The minimum amount of energy needed for reactant molecules to collide successfully and start a reaction.

Standard Enthalpy of Atomization

The enthalpy change when one mole of gaseous atoms is formed from an element in its standard state.

Bond Enthalpy

The energy required to break one mole of bonds in a gaseous molecule, averaged over similar compounds.

Hess's Law

The principle stating that the total enthalpy change in a chemical reaction is independent of the route taken.

Neutralization Reaction

A reaction between an acid and a base to form water and a salt.

Bond Dissociation Energy

The energy required to break a specific bond in a molecule.

Heat of Formation (ΔH_f)

The enthalpy change when one mole of a compound is formed from its elements in their standard states.