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Diket = m = 1 l (ini jika massanya sama2 1 liter)
T1 = 40
T2 = 90
Ditanya = Tc? ------> suhiu campuran
Jawab.
Q1 = Q2
mcdelta T1 = mcdelta T2
delta T1 = delta T2 ---------> karena massa dan kalor jenisnya sama, kita coret saja
Tc - T1 = T2-Tc -----> ruas kiri Tc ditulis pertama krn suhunya Tc lbh bsr, ruas
Tc-40 = 90 - Tc kanan Tc ditulis terakhir karena Tc < T2
Tc + Tc = 90 + 40
2 Tc = 130
Tc = 130/2
Tc = 65'C.
gitu ya? semoga membantu
jawabannya c. 65°C