Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and the Yahoo Answers website is now in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

# Gases and transition between states?

1)A tank of nitrogen contains 1.5 lbs of N₂ at a temperature of 50℃ and 100 atm pressure. What is the volume of cylinder?

My answer is 4.45 litter. Is this answer correct?

2)Dry air was bubbled through water at 25℃ and 100 atm pressure so that it became saturated with water vapour. Ten litters of  "wet" air at 25℃ and 1.00 atm pressure were then passed through a calcium chloride tube(water-absorbing tube) which increased in weight by 0.2304 g.

a) What is the vapour pressure of water at 25℃?

b) What is the volume of the dry air at 25℃ and 1.00 atm pressure after removal of water vapour?

How to answer 2)a and  2)b ?

Update:

Answers :-

My  answer to first question is correct.Answer to second question is given below:-2a)Pressure of water vapour = gRT/MV                                              = (0.0128 mol × 8.314472J/mol.K × 298 K)/10L                                              = 0.03128 atm. 0.03128 atm ×760 torr/atm = 23.8 torr.2b) Pressure of dry air = 760 torr -23.8 torr = 736 torr. 10 L × 736 torr/ 760 torr = 9.68 Litter.

Update 2:

Answer 2)a= 23.8 torr. 2)b= 9.68 Litters.

### 1 Answer

Relevance
• Jim
Lv 7
1 month ago
Favorite Answer

Not a homework site.

Please show us your work, so we can assist you

Still have questions? Get your answers by asking now.