作者pobm (待從頭收拾舊河山)
看板TransPhys
標題[熱能] 等溫壓縮
時間Wed May 30 09:40:03 2007
Three moles of an ideal gas undergo a reversile isothermal compression
at 20C. During this compression, 1850J of work is done on the gas.
What is change of entropy of the gas?
應該是-1850/293對吧
可是Young的解答寫1850/293耶
是我錯了嗎?
謝謝^^
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推 weakaday:因為氣體是吸熱，所以Q取正~~~~ 05/30 10:54
推 pobm:可是被壓縮是外界對氣體作功耶 05/30 13:24
→ pobm:1850J of work is done on the gas.是不是我文法太爛~~ 05/30 13:24
→ pobm:我看起來他好像是在說氣體被做功1850J 05/30 13:25
推 weakaday:這句翻出來似乎是1850J的功被做在氣體上...我英文也很破 05/30 16:07
推 weakaday:pobm你的答案應該是對的，解答可能有錯 05/31 09:54
→ weakaday:我之前忘記考慮熱力學第一定律了 05/31 09:58