Resposta :
Capacidade termica C=c*m
C=c*m
C/m=c
600/200=c
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c=3cal/g°C
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Q=C*/\t
Q=600*20
Q=12.000 cal
Q=m*c*/\t
12.000=200*3*(tf-20)
12.000= 600tf - 12.000
24.000 = 600tf
24.000/600 = tf
240/6 = tf
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tf = 40°C
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C=c*m
C/m=c
600/200=c
***************
c=3cal/g°C
**************
Q=C*/\t
Q=600*20
Q=12.000 cal
Q=m*c*/\t
12.000=200*3*(tf-20)
12.000= 600tf - 12.000
24.000 = 600tf
24.000/600 = tf
240/6 = tf
**********
tf = 40°C
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