energy review Flashcards
what is potential energy
stored energy
what is kinetic energy
energy in motion
what is the measure of average kinetic energy
temperature
what is the formula for converting celsius to kelvin
K=C + 273
what is the formula for converting kelvin to celsius
K=C-273
what is the stand temperature
0 C or 273 K
what is standard pressure
1 atm or 101.3 kPa
what happens to energy in any process
it is neither created nor destroyed
In any chemical process what three things must always be conserved
energy mass and charge
what is energy always transferred from
high to low or hot to cold
when do you use heat of fusion
from solid to liquid phase changes
when do you use heat of vaporization
from liquid to gas phase changes
what do exothermic phase changes do
release energy
what do endothermic phase changes do
absorb energy
what are the endothermic phase changes
Solid to liquid:melting
Liquid to gas:boiling
Solid to gas:vaporization
