using/releasing energy with heat
heat=q
exothermic reaction is one where heat is released from a high energy set of reactions
if it is exiting it is <0
low energy system converting to a high-energy system is endothermic (heat entering the reaction)
if it is entering it is >0
forms of energy
potential energy-stored energy
kinetic energy-energy in motion
cyclist descending hill
releasing coiled spring
work energy—force acting over a distance
1st law of thermodynamics
convert among common units of energy
measuring heat entering/leaving
heat is a type of kinetic energy
heat and temp
zeroth law of thermodynamics
heat capacity
important equations