i0=20c° f0=9,2c° E0,200â4,18â103j.°câ1.kgâ1â(9,2â20)=â45144,2j.°câ1.kgâ1 300â(20â9,2)=â3240J Eflu=Mglason*Lfus$$$$=0,03666*Lfus 0,028â4180â(10â9,2)=1264,032 Eeau+Ecal+Eflus+Eglac\câon=0