Jawabanmu

2014-06-01T21:45:55+07:00
Rumus = 1-T1/T2x100%
T1 = 27+273 = 300 K
T2= 227+273 = 500 K
maka 1-300/500x100% = 2/5x100% = 40%
Jawaban paling cerdas!
2014-06-01T21:48:08+07:00
A. Efisiensi = (1 -  \frac{T2}{T1} ) x 100%
                  = (1 -  \frac{300}{500} ) x 100 %
                  = 60%
b.  \frac{Q2}{Q1} =  \frac{T2}{T1}
     \frac{Q2}{1000} =  \frac{300}{500}
    Q2 = 600 J
2 5 2