specific heat capacity/latent heat Flashcards
what is the specific heat capacity
amount of heat required to raise 1kg of an object to 1 C
formula for heat=Q
mass * SPC * temp change (J)
the formula for specific heat capacity
spc = heat/mass*temp change = (j/KgC)
what is thermal energy
the amount of heat required to increase the whole body by one degree
the formula for thermal energy
Q= mass * spc (j/c)
Specific latent heat of fusion?
amount of heat required to change a unit mass of solid to unit mass of liquid without temperature change
Specific latent heat of vaporisation?
the quantity of heat required to turn unit mass of liquid to unit mass of vapour without temperature change
the formula for heat
Q = m * l (J)
the formula for specific latent heat
l=Q/m (j/kg)
how does the temp not increase at all
this is because both vapourisation and fusion increase the particles P.E, not K.E
does evaporation reduce the temp of liquids
yes