[普化] 台大的普化考題

[pachinoya (小亞)]

predict the sign of S for each of the following and explain
(c)compressing an ideal gas at constant temperature
答案是S<0  為什麼啊

how many different tripeptids can be found form one molceule each of the amin
o acid tyrosine,valin,and alanine? 答案是6

In an adiabatic system(隔熱系統),if work is done,the tempertature must
(a)increase (b)decrease (c)remain the same (d)increase then decrease
(e)decrease then increase  答案是(b)decrease


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作者: ayabbe (芮妮齊薇格) 看板: TransBioChem
標題: Re: [普化] 台大的普化考題
時間: Fri Jul 15 17:27:37 2005

※ 引述《pachinoya (小亞)》之銘言：
: predict the sign of S for each of the following and explain
: (c)compressing an ideal gas at constant temperature
: 答案是S<0  為什麼啊

: how many different tripeptids can be found form one molceule each of the amin
: o acid tyrosine,valin,and alanine? 答案是6

  這一題要去看生物課本才有寫(就atcg)的組成


: In an adiabatic system(隔熱系統),if work is done,the tempertature must
: (a)increase (b)decrease (c)remain the same (d)increase then decrease
: (e)decrease then increase  答案是(b)decrease

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作者: ayabbe (芮妮齊薇格) 看板: TransBioChem
標題: Re: [普化] 台大的普化考題
時間: Fri Jul 15 17:30:19 2005

※ 引述《pachinoya (小亞)》之銘言：
: predict the sign of S for each of the following and explain
: (c)compressing an ideal gas at constant temperature
: 答案是S<0  為什麼啊
: how many different tripeptids can be found form one molceule each of the amin
: o acid tyrosine,valin,and alanine? 答案是6

: In an adiabatic system(隔熱系統),if work is done,the tempertature must
: (a)increase (b)decrease (c)remain the same (d)increase then decrease
: (e)decrease then increase  答案是(b)decrease


   這一題我覺得  會減少的原因是   絕熱系統防止熱功的傳導

   但本身還是會對系統內部吸收一點能  (例如冰用保麗龍包著 但還是會慢慢退冰

   並非不退冰

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推 Nihplod:保麗龍不是完全絕熱芭 和題目的狀態不同
推 ayabbe:Orz.....是喔...excuse
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作者: ayabbe (芮妮齊薇格) 看板: TransBioChem
標題: Re: [普化] 台大的普化考題
時間: Fri Jul 15 17:33:04 2005

※ 引述《pachinoya (小亞)》之銘言：
: predict the sign of S for each of the following and explain
: (c)compressing an ideal gas at constant temperature
: 答案是S<0  為什麼啊


   壓縮任何氣體(體積)  都會讓 dissorder (S) 減小..^^



: how many different tripeptids can be found form one molceule each of the amin
: o acid tyrosine,valin,and alanine? 答案是6
: In an adiabatic system(隔熱系統),if work is done,the tempertature must
: (a)increase (b)decrease (c)remain the same (d)increase then decrease
: (e)decrease then increase  答案是(b)decrease

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作者: sheepm (sheep) 看板: TransBioChem
標題: Re: [普化] 台大的普化考題
時間: Sat Jul 16 01:37:35 2005

※ 引述《pachinoya (小亞)》之銘言：
: In an adiabatic system(隔熱系統),if work is done,the tempertature must
: (a)increase (b)decrease (c)remain the same (d)increase then decrease
: (e)decrease then increase  答案是(b)decrease
  在隔熱的系統內 內能E是沒有改變的
  而E=q + w
  既然坐了功  就會消耗熱  所以溫度會下降

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