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Ct-ciepło topnienia
Q-ciepło dostarczone
m-masa
Q=Ct*m
Q=330 000J/kg*0,005kg=1650J
m=5g=0,005kg
L=330000 J/kg
t. pocz.=0
Q=m*L
Q=0,2 * 330000=66000J=66kJ