作者walk0123 (誓言)
看板Chemistry
標題[學科] 普通化學問題~ 氣體方面..
時間Sat Nov 10 00:05:00 2007
在0.959atm和298K狀態下，一個由C和H所組成的樣本
在燃燒之後，可以得到一1.51atm和375K的CO2和H2O的混合氣體，
此混合氣體的密度是1.39g/L
且混合物的氣體體積是原來純碳氫化合物的4倍，
問碳氫化合的分子式?
答案是C2H6。
要如何計算~????
原始題目如下!
Consider a sample of a hydrocarbon(a compound consisting of only carbon and hydrogen) at 0.959 atm and 298 K.
Upon combusting the entire sample in oxygen,
you collect a mixture of gaseous carbon dioxide and water vapor at 1.51 atm and 375K.
This mixture has a density of 1.391 g/L and occupies a volume four times as large as that of the pure hydrocarbon.
Determine the molecular formula of the hydrocarbon.
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 220.135.64.159