Calculate the work done in joules when 1.0 mole of water vaporizes at 1.0 atm and 100度C. Assume that the valume of liquid water is negligible compared with that of steam at 100度C, and ideal gas behavior.
看起來好像很容易,但是我算不出來~
體積改變量無法得知,而且mole數改變也一樣
醬要怎麼算阿??
2006-11-13 14:57:09 · 1 個解答 · 發問者 Libra 1 in 科學 ➔ 化學
100℃,1大氣壓,1 莫耳水蒸氣的體積:PV=nRT→1*v=1*0.082*(100+273)→v=30.586(公升),質量=18克(1莫耳的質量)液態時體積為18(ml)=0.018(公升)所以由液態的水企畫成水蒸氣時,體積的變化量 30.586-0.018=30.568(公升)
2006-11-13 15:11:41 · answer #1 · answered by ~~初學者六級~~ 7 · 0⤊ 0⤋