A lot depends on which board you are sitting. Usually, though, the definitions are just (an important) start. In things like enthalpy calculations, they may ask you to give an equation that matches the enthalpy of formation etc, rather than just write the words. Look in the specification and watch out for keywords like "KNOW", "STATE WHAT IS MEANT BY". Some of the textbooks have lists of definitions but always do your own check with the specification.
A lot depends on which board you are sitting. Usually, though, the definitions are just (an important) start. In things like enthalpy calculations, they may ask you to give an equation that matches the enthalpy of formation etc, rather than just write the words. Look in the specification and watch out for keywords like "KNOW", "STATE WHAT IS MEANT BY". Some of the textbooks have lists of definitions but always do your own check with the specification.