通常由普通experiment計出黎ge specific heat capacity 係大左@@...
咁如果係細左會有d咩原因？？？
Specific heat capacity GE 問題
2006-12-25 6:28 am
回答 (3)
2006-12-25 6:56 am
✔ 最佳答案
首先, 由方程式 E = mc(delta T), 其中 E = 提供了的能量, m = 物質的質量, c = specific heat capacity 和 delta T = 溫度變化重寫後可變為:
c = E/[m(delta T)]
所以若計出來的 c 細o左就有以下原因:
1) 實際入的 E > 計算時用的 E (例如個焦耳計走快了)
2) 實際用的 m < 計算時用的 m (例如秤的時候有誤差)
3) 實際用的 delta T < 計算時用的 delta T (例如溫度計有誤差)
參考: My Physics knowledge
2006-12-25 6:41 am
water loss.
By E=mcdT (dT = delta T)
because of the loss of water ,
[m] of water decrease .
From above , E = mcdT while [m] is decreasing ,
also , the [E] should be equal ,
therefore , expt[c] is increasing.
By E=mcdT (dT = delta T)
because of the loss of water ,
[m] of water decrease .
From above , E = mcdT while [m] is decreasing ,
also , the [E] should be equal ,
therefore , expt[c] is increasing.
參考: myself
2006-12-25 6:39 am
我估..可能係因為能量用少o左..
好似你將零度o既水升到25度..
可能室溫已經有三十度..
咁咪會o係surrounding gain energy..
相對地..要用o既energy on heating少o左~
好似你將零度o既水升到25度..
可能室溫已經有三十度..
咁咪會o係surrounding gain energy..
相對地..要用o既energy on heating少o左~
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原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20061224000051KK04075