Final Pressure in Two-Bulb Apparatus After Valve Opening

Click For Summary
SUMMARY

The final pressure in a two-bulb apparatus after opening the valve can be calculated using the principles of partial pressures. Bulb #1 contains gas at 1.3 atm and 4.27 L, while Bulb #2 has gas at 6.6 atm and 7.40 L. Upon opening the valve, the total pressure is determined by the combined contributions of both bulbs, assuming constant temperature and no chemical reaction. The final pressure is the sum of the partial pressures from both bulbs.

PREREQUISITES
  • Understanding of gas laws, specifically Dalton's Law of Partial Pressures
  • Knowledge of pressure and volume relationships in gases
  • Familiarity with the ideal gas law
  • Basic algebra for calculations involving pressure and volume
NEXT STEPS
  • Study Dalton's Law of Partial Pressures in detail
  • Learn how to apply the ideal gas law to calculate pressure changes
  • Explore the concept of gas mixing and its implications in thermodynamics
  • Practice problems involving multiple gas systems and pressure calculations
USEFUL FOR

Chemistry students, physics enthusiasts, and professionals working in fields involving gas behavior and thermodynamics will benefit from this discussion.

J-Nast
Messages
1
Reaction score
0
Consider an apparatus where there are two rigid glass bulbs separated from one another by a valve that is closed initially. Bulb #1 has a pressure of 1.3 atm and a volume of 4.27 L and bulb #2 has a pressure of 6.6 atm and a volume of 7.40L. What is the final pressure (in atm) in the apparatus after the valve is opened so that the gases from each side can mix? Assume that the T remains constant and there is no reaction between gases.

I really have no clue where to start with this one, any help would be wonderful. :wink:
 
Physics news on Phys.org
you could do it using partial pressures. how much pressure does the gas on bulb 1 put on the entire system and how much does the gas in bulb 2 put in the system? (basically assume that bulb 2 is empty when opened for the first part and the opposite for the second). The pressures will then add to be the final pressure.
 

Similar threads

Chemistry Question -- Opening a valve between two containers....
  • · Replies 1 ·
Replies
1
Views
2K
Chemistry How does it work to mix two gases reversibly in this device?
  • · Replies 1 ·
Replies
1
Views
2K
Gas Laws - What is the final pressure in the system?
  • · Replies 8 ·
Replies
8
Views
7K
Final pressure when two gases at different pressure
  • · Replies 4 ·
Replies
4
Views
30K
Final Pressure of Gas Mixture After Reaction Completed
  • · Replies 10 ·
Replies
10
Views
5K
Pressure rate increase between two vessels
  • · Replies 5 ·
Replies
5
Views
2K
Final Pressure of Mixed Gases at 25°C
  • · Replies 1 ·
Replies
1
Views
4K
Undergrad How Do You Calculate Equilibrium Conditions After Mixing Two Different Gases?
  • · Replies 3 ·
Replies
3
Views
3K
Solve Chemistry Gas Problem: Pressure in System When Stopcocks Open
  • · Replies 1 ·
Replies
1
Views
11K
Mixing two gases in an isolated system and calculating final p and T
  • · Replies 4 ·
Replies
4
Views
3K