These are just terms you'll have to remember:
#25)# The heat content #q# of a system at constant pressure, #q_P#, is the change in enthalpy, #DeltaH#:
#q_P = DeltaH#
#26)# The ability to do work is a common definition for energy. We exert energy to push something forward, and hence, our ability to do work on the surroundings requires energy.
#27)# Disorder, or the more modern definition, energy dispersal, is associated with entropy. It is the extent to which a system can spread out its energy, and is proportional to the amount of motion in the system.
#28)# Energy of motion... well, "kinetic" means "relating to or resulting from motion" (see google!), so it is kinetic energy #K#, given by:
#K = 1/2mv^2#
and it can be seen that #v#, speed, directly relates to motion.
#29)# The study of changes in energy during chemical reactions or changes of state pertains to heat-related stuff, and to chemistry stuff, so it pertains to thermochemistry.
#30)# The amount of heat required to raise #"1 g"# of water by #1^@ "C"# is the calorie, i.e. a #"cal"#. Not to be confused with the #"Cal"#, where #"1 Cal"# #=# #"1 kcal"#.
(The extent to which this heat affects the #"1 g"# of stuff is described BY the specific heat capacity, but the amount of heat needed for #DeltaT = 1^@ "C"# is #"1 cal"#.)
