IB Chemistry Topic 4 & 14 Definitions
The electrode where electrons exit the external wire and oxidation occurs
The energy needed to break one mole of a bond in a gaseous molecule and averaged and averaged over similar compounds
An energy cycle that shows the formation of ionic compounds in gas or aqueous states
A device that can measure an exothermic reaction's enthalpy change
The electrode where electrons enter the external wire and reduction occurs
A conductive solution
A reaction that absorbs heat because the reactants have stronger bonds than the products
The ability to move a unit force a unit distance, measured in joules. ie the amount of work done
The amount of energy produced per unit mass or volume of fuel, with methanol having a higher energy density than hydrogen in fuel cells
The internal energy stored in molecules
The enthalpy change when one mole of a gaseous ionic substance is dissolved in water to form an infinitely dilute solution
The enthalpy change when one mole of a solute is dissolved in excess solvent to form an infinitely dilute solution
The measure of distribution of available energy among particles, measured in JK-1mol-1
A reaction that releases heat because the products have stronger bonds than the reactants
It is the total kinetic energy of all particles in an object
The enthalpy change when one mole of ionic compound is broken apart into its constituent gaseous ions
The measure of how much energy a unit mass of a substance takes to be raised by 1K/1°C
The ease with which a reaction occurs
Enthalpy change to completely combust one mole of a compound at STP
Enthalpy change to form one mole of a compound from its elemental constituents at STP
The enthalpy change when one mole of gaseous atoms is formed from its element at STP
The entropy change experienced when heating a substance from 0K to 298K (STP)
The change in free energy during a reaction, dependent on enthalpy, entropy, and temperature change
It is the average kinetic energy of an object's particles