Jawabanmu

2014-01-14T09:58:00+07:00
Q1 = Q2
m . c . ΔT = m . c . ΔT (c dicoret krn sama" air)
200 . (t-20) = 500. (80-t)
200t - 4000 = 40.000 - 500t
200t + 500t = 40.000 + 4.000
700t = 44.000
tcampuran = 62,86 °C

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