Jawabanmu

2014-06-13T21:04:53+07:00
Tlepas = 50+273 = 323K
Tserap = 500+273 = 773K
efisiensi = 1-Tlepas/Tserap
efisiensi = 1-323/773
            = 1-0,4178 = 0,582
efisiensi = 0,582x100% = 58,2%