changes of state and internal energy stores Flashcards
heating system will change energy stored within the system and raise its temp to produce change of state
to change a substances state, you need a change in the energy in the _________ of the particles
internal energy stores
how do you transfer energy to internal energy stores
by heating
a substance’s energy in its internal energy store is the
total energy of all particles in that substance
when you heat a substance, you transfer energy to the particles of the substance- so you will always ____ the energy in the internal energy store of the substance
increase
how can the temperature of a substance be measured (2)
kelvin scale (K)
degrees celsius
If a substance is changing its state, its temperature will
stay constant
for water at standard atmospheric pressure, what is boiling and melting point at *C
b- 100
m- 0
as substances cool, energy is transferred ____ from them so they ___ energy from their _____
away
lose
internal energy store
condensation happens at the same temperature as
boiling
the forces between particles become ____ as particles move closer together
stronger
condensation is
gas to liquid
solidification is
liquid to solid
melting is
solid to liquid
boiling is
liquid to gas