Jawabanmu

2014-04-10T01:56:04+07:00
ASAS BLACK
Qterima=-Qlepas
m1c1ΔT1=-m2c2ΔT2
karena zatnya sama yaitu air, maka
m1c(Tc-T1)=-m2c(T2-Tc)
m1(Tc-T1)=-m2(T2-Tc)
m1Tc-m1T1=-m2T2+m2Tc
m1Tc-m2Tc=m1T1-m2T2
Tc(m1-m2)=m1T1-m2T2
Tc=(m1T1-m2T2)/m1-m2
Tc=(75.0-50.100)/75-50
Tc=-200°C