A mixture of gases is produced by combining 4.0 L of N2 at 450 torr, and 3.5 L of O2 st 252 torr. the total volume of the new mixture is 7.5 L. the temperature is held constant.
Use the combined gas law.
Calculate the partial pressures of N2 and O2 followed by the total pressure?
2018-04-11 12:07 am
回答 (1)
2018-04-11 4:16 am
✔ 最佳答案
Combined gas law: P₁V₁/T₁ = P₂V₂/T₂ When temperature is held constant: P₁V₁ = P₂V₂
Then, P₂ = P₁ × (V₁/V₂)
After mixing (answers to 2 sig. fig.) :
Partial pressure of N₂ = (450 torr) × (4.0/7.5) = 240 torr
Partial pressure of O₂ = (252 torr) × (3.5/7.5) = 120 torr
Total pressure = (240 + 120) torr = 360 torr
(The answer will be 240 torr, 118 torr and 358 torr when the answers are to 3 sig. fig.)
收錄日期: 2021-04-24 01:02:43
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20180410160710AAuTwT2