August 2018 1 97 Report

ibu merebus 5 kg bersuhu 20 derajat celcius menggunakan heater. Energi listrik yang diperlukan untuk merebus air tersebut hingga mendidih pada suhu normal sebesar.... kJ. ( c air = 4200 J/kg K )

A. 420

B. 1410

C.1680

D.2100

Berikan caranya


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