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範例:核能與電能計算[102學測]

核能發電反應機組停機後,核分裂連鎖反應會停止,但是反應後的產物仍具有放射性,也會持續產生餘熱而造成高溫。若停機後的餘熱發電功率為Pr,核能機組正常發電功率為P,以=W為縱軸,則其隨時間改變的曲線如右圖所示。假設核電廠某一機組正常發電功率為每小時64萬度,而某用戶每個月用電度數為320度,則停機經過一天後,該時的餘熱用來發電一小時的電能,與該用戶用電約多久時間的電能相等?(A) 3小時  (B) 3天  (C) 30天  (D) 300天  (E) 3000天

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Posted in 核能, 歷屆學測(推甄)考題, 能量, 能量的轉換與守恆.

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