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Cw gliceryny=2386 J/kg*C
Q=200kj=200000J
t=120C
szukane:m
Cw=Q/m*t
m=Q/Cw*t
m=200000J/2386(kg*C)*120C
m=0,7kg
Δt=120-0=120
m=?
cw=2430 J/kg K
Q=200 kJ =200000 J
200000=m*2430*120
200000=m*291600
m=200000:291600
m=0,68 kg