rate of reaction. chem? maths?

👨🏻‍🏫 學術台化學

[匿名]

2011-12-21 7:51 am

the rate of reaction increases as the temperature increases.咁即係rate 同 temp. 成正比啦(?)
但係plot圖個陣(正x axis同正y-axis個邊),
rate(1/t) against temp.
個graph係由左下彎上去右上
但係正比個graph唔係直線既咩?
confusing><求救!

更新1:

如果temp. 同rate唔係成正比,個關係淨係話一個上升另一個上升? temp. 同rate係唔係冇得用正反比講架?

回答 (3)

某某

2011-12-21 10:14 pm

✔ 最佳答案

佢地唔係direcrly proportional 架
rate=k[S] [S]=substrate concentration
k=Ae^(-Ea/RT) Ea=activation energy
T=temperature R= 8.314 A=constant
lnk=-Ea/RT +lnA
rate constant 同 T 既relation係咁樣
when T increase, -Ea/RT increase , k increase , rate increase

參考: me

👍 0 👎 0

知識就是力量

2011-12-22 1:23 am

They are in exponential relationship.

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小云

2011-12-21 7:41 pm

隨著上升不等於正比！

2011-12-21 14:31:38 補充：
你說得對：）！！！！！

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