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m = 5 kg
ΔT = 80 C
c = 4200 J/Kg c
ditanyakan :
Q = ?
jawab ;
Q = m c ΔT
Q = 5 x 4200 x 80
Q = 1680000 J = 1680 kJ
∆t= 80° c
c= 4200 J/kg°c
dit = Q?
jawab=
Q= m.c.∆t
= 5 kg.4200 J/kg°c.80°c
= 1680000J
= 1680 KJ