New pressure of a gas when the volume changes at const Temperature

Click For Summary
SUMMARY

The discussion centers on the application of Boyle's Law, represented by the equation P1V1 = P2V2, to determine the new pressure of a gas when its volume changes at constant temperature. A participant identified a potential typo in the problem statement regarding the volume of the pump chamber, suggesting it should be 6.5 x 10-5 m3 (0.065 L) to align with the expected answer. This insight clarified the confusion surrounding the solution, demonstrating the importance of accurate data in physics problems.

PREREQUISITES
  • Understanding of Boyle's Law and its mathematical representation.
  • Familiarity with gas laws and their applications in thermodynamics.
  • Basic algebra skills for manipulating equations.
  • Knowledge of unit conversions, particularly between cubic meters and liters.
NEXT STEPS
  • Review Boyle's Law applications in real-world scenarios.
  • Learn about the Ideal Gas Law and its relationship with Boyle's Law.
  • Explore common mistakes in physics problem-solving and how to avoid them.
  • Investigate the significance of precision in scientific measurements and calculations.
USEFUL FOR

Students studying physics, educators teaching gas laws, and anyone involved in scientific problem-solving who seeks to enhance their understanding of gas behavior under varying conditions.

mrcotton
Messages
120
Reaction score
0

Homework Statement


pumpQ_zpsfbc48895.jpg

Homework Equations


At constant temperature
then P1V1=P2V2

The Attempt at a Solution


This is my attempt at the solution
pumpA_zpscb71ca03.jpg


however the mark scheme says

pumpMS_zps50532314.jpg


Any help appreciated?
I just can't see what I am not seeing?
 
Last edited:
Physics news on Phys.org
I think there is a typo in the question. The volume in the bottle is much greater than the volume in the pump chamber in this diagram. I suspect that the questioner intended the volume of space in the pump chamber to be 6.5 x 10-5 m3 (.065 l). If that were the case, the given answer is correct.

AM
 
Andrew your a star, I would never have seen that.
Thanks again for your help
D
 

Similar threads

  • · Replies 8 ·
Replies
8
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 2 ·
Replies
2
Views
3K
Replies
3
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 6 ·
Replies
6
Views
3K
  • · Replies 3 ·
Replies
3
Views
1K
  • · Replies 3 ·
Replies
3
Views
7K
  • · Replies 12 ·
Replies
12
Views
7K