October 2018 1 40 Report
Ibu merebus 5 kg air bersuhu 20 derajat celcius menggunakan heater. Energi listrik yang diperlukan untuk merebus air tersebut hingga mendidih pada suhu normal sebesar....KJ. (kalor jenis air =4.200 J/kg derajat celcius)
a. 420 c.1.680
b.1.410 d. 2.100

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