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Q= 126 kJ --> 126×1000= 126000 Joule
Δt= 85-35= 50°C
C= 4200 J/kg°C
Dit:
m=..?
Penye:
m= Q/(C×Δt)
m= 126000/(4200×50)
m= 126000/210000
m= 0,6 kg --> 0,6×1000= 600 gram
Δt= 85-35= 50 derajat C
c= 4.200 J/kg derajat C
m(g)?
Q=mcΔt
m=Q/cΔt
=126.000/4.200×50
=0.6 kg
= 600 gram