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範例:熱水器與功率[99學測]

太陽能熱水器的主要構造如圖15所示,利用冷水注入框內彎管經陽光照射而使水加熱。若每分鐘從入水口流入的水量為12.0公斤,水溫為25.0℃。從出水口流出的水量為12.0公斤,水溫為45.0℃。則此熱水器的功率約為何?

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Posted in 歷屆學測(推甄)考題, 熱容量與比熱, 熱的本質與熱功當量, 能量的轉換與守恆.

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