Jawabanmu

2014-04-15T10:14:04+07:00
Tanpa cara : Pasti 3 kg air bersuhu 90 Celcius!

Smoga membantu! :D
2014-04-15T10:37:25+07:00
T= 90+273 = 363
mb . cb (tb-tc) = ma.ca (tc-ta)
2.4200 (363k-tc) = 1.4200 (tc-363)
3.049.200 - 8400 tc = 4200 tc-1.524.600
4.573.800 = 12600 tc
tc = 363K -> Dalam SI

°C = TK -273
°C = 363 - 273
°C = 90 °C