Sunday, August 26, 2012

Contoh Soal


Contoh Soal:
1.      Hitunglah banyak kalor yang dibutuhkan untuk memanskan 500 gr air dari 20°C menjadi 50°C! (c = 4.200 J/kg°C)
Penyelesaian:
Dik. m = 500 gr = 0,5 kg
        ∆t = 50°C - 20°C = 30°C
           c = 4.200 J/kg°C
Dit. Q = ...?
Jawab. Q = m x c x ∆t
                  = 0,5 x 4200 x 30
                  = 63.000 joule = 63kJ

1 comment:

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