物理計數!比潛熱
回答 (1)
2008-03-05 3:05 am
✔ 最佳答案
Making use of the following formula:E = Pt , E = mc△T , E = ml
Let the mass of water be mkg.
P ( 10 )( 60 ) = ( m )( 4200 )( 100 - 20 )
P = 560m --- ( 1 )
Pt = ml
560mt = m ( 2.26 x 106 )
t = 67.3min ( 3 s.f. )
參考: My Phy Knowledge
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