October 2018 2 81 Report
Besar kalor yang diperlukan untuk meleburkan 20 kg timbal (L timbal = 2,5 x 10^4 J/kg adalah...
a. 5 x 10^3 joule
b. 5 x 10^4 joule
c. 5 x 10^5 joule
d. 5 x 10^6 joule
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