[問題] 氣體動力學
【出處】(習題或問題的出處)
高中物理
【題目】(題目的文字敘述,如有圖片亦可提供圖片)
http://i.imgur.com/ueEDTXk.jpg


不太懂這兩張圖差在哪耶?
C到A。一個是吸收熱量,一個是放出熱量。這沒有矛盾嗎?
【瓶頸】(解題瓶頸或思考脈絡,請盡量詳述以利回答者知道要從何處講解指導)
順時針方向的環積分,不是指氣體對外界做功的意思嗎?
跟Q U W有關係?
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