

InterviewSolution
Saved Bookmarks
1. |
Air contains `N_(2)` and `O_(2)` in the ratio of 4:1 by volume. The average conditions of temperature and pressure ?A. `12.0`B. `14.4`C. `15.6`D. `28.8` |
Answer» Correct Answer - B As under similar conditions of temperature and pressure, equal volumes contain equal number of moles , therefore, molar ratio of `N_(2)=4//5=0.8` and mol fraction of `O_(2)=0.2` `:.` Average vapour density of air `=(28.8)/(2)=14.4` |
|