hce_kmu
113年
物理及化學
第 49 題
In the figure, a gas enclosed within a sealed chamber follows a closed path as illustrated. What is the total amount of work performed by the gas?
- A +40 J
- B +20 J
- C 0 J
- D -20 J
- E -40 J
思路引導 VIP
請觀察圖中的箭頭路徑:氣體在「壓力較高」的頂部路徑中,體積是在增加(膨脹)還是減少(壓縮)?這種方向性對於「氣體對外做功」的正負號會產生什麼影響?