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Dik :
m = 800 gram = 0,8 kg
t = 10C
= 100C
U = 2,27 × 10 J/kg,
= 4.200 J/kgC
Dit :
Jwb:
= m··Δt
= m··( -
= 0,8·4.200·(100-10)
= 0,8·4.200·90
= 302.400 J
= m·U
= 0,8·2,27 × 10
= 1.816.000 J
= +
= 302.400 + 1.816.000
= 2.118.400 J (D)
No. 5 saya kurang ngerti... hehehe :D