Respostas

2013-08-15T20:09:46-03:00
Letra A)

Q = m*c*/\T
90 = 100*c*(50 - 20)

90 = 100*c*(30)
90 = 3.000c

90 / 3.000 = c

c = 3/100

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c = 0,03 cal/g*°C
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Letra B)

C = Q / /\T
C = 90/30
*****************
C = 3 cal/°C
*****************

Outra Forma

C = c*m
C = 0,03 cal/g*°C * 100g

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C = 3 cal/°C
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