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t1=30°C
t2=50°C
△t=30°→50°=20°
C =0,8/kg°C
Dit=Q=?
Pembahasan=Q=m.c.△t
=4 kg.0,8 J/kg°C.30°C
=3,2 . 30
=96 J
maaf kalo salah
Delta T= 50-30=20
c=0,8
dit Q?
Q=m x c x delta t
Q= 4 x 0,8 x 20
Q= 64