Definitions Flashcards
Lattice enthalpy
The enthalpy change when 1 mol of an ionic compound is converted into gaseous ions
Enthalpy of atomisation
The enthalpy change when 1 mol of gaseous atoms is formed from the element in its standard state
First electron affinity
The enthalpy change when 1 mol of gaseous atoms is converted into gaseous ions with a single negative charge
Enthalpy of solution
The enthalpy change when 1 mol of a solute dissolves in water
Enthalpy of hydration
The enthalpy change when 1 mol of gaseous ions is converted to 1 mol of aqueous ions
Feasible
A reaction for which 🔼G less than 0
Delta G less than 0
Entropy
A measure of disorder (randomness)
Free energy
🔼G = 🔼H - T🔼S
Rate of reaction
The change of the concentration of a reactant or product with respect to time
Order of reaction (with respect to a reactant)
The power to which the concentration of a reactant is raised in the rate equation
Order of reaction (overall)
The sum of the powers to which the concentration terms are raised in the rate equation
Rate constant
The proportionality constant which links the rate of the reaction to the concentrations in the rate equation
Rate determining step
The slowest step in the mechanism of a reaction
Brønsted acid
Proton donor
Brønsted base
Proton acceptor
