IB Chemistry Sub-topic R1.3 Definitions
This page contains our IB Chemistry definitions for sub-topic R1.3. By learning each one of these definitions, you will fully cover the content for IB Chemistry 'Fuels'.
anode
The electrode where electrons exit the external wire and oxidation occurs
cathode
The electrode where electrons enter the external wire and reduction occurs
electrolyte
A conductive solution
energy
The ability to move a unit force a unit distance, measured in joules. ie the amount of work done
Energy Density
The amount of energy produced per unit mass or volume of fuel, with methanol having a higher energy density than hydrogen in fuel cells
exothermic reaction
A reaction that releases heat because the products have stronger bonds than the reactants
heat
It is the total kinetic energy of all particles in an object
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