What is the final volume of the balloon in liters after being heated to 93.0oC?

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Discussion Overview

The discussion revolves around calculating the final volume of a balloon after it is heated from an initial temperature of 58.0°C to a final temperature of 93.0°C, while maintaining constant pressure. The context includes concepts from gas laws, specifically Charles's Law, and the ideal gas law.

Discussion Character

  • Homework-related
  • Technical explanation
  • Mathematical reasoning

Main Points Raised

  • One participant presents a homework problem involving a balloon's volume change due to temperature increase.
  • Another participant suggests using the ideal gas law as a foundational concept for solving the problem.
  • A participant proposes using Charles's Law, providing the formula and emphasizing the need to convert temperatures to Kelvin.
  • Another participant agrees with the use of Charles's Law but suggests that the ideal gas law can also be simplified to derive the same relationship.
  • There is a reiteration of the importance of using Kelvin for temperature conversions, with a humorous note about an alternative temperature conversion formula.

Areas of Agreement / Disagreement

Participants generally agree on the applicability of Charles's Law and the ideal gas law for solving the problem, but there is no consensus on which approach is preferable or necessary. The discussion remains exploratory without a definitive resolution.

Contextual Notes

Participants mention the need for temperature conversion and the relevance of different gas laws, but there are no explicit assumptions or limitations discussed regarding the problem's parameters.

parwana
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A balloon is filled to a volume of 63.0 mL at a temperature of 58.0oC.
The balloon is then heated up at constant pressure to a temperature of 93.0oC.
What is the final volume of this balloon, in liters?

We haven't even covered this yet in chem, but for some reason they are giving this as a homework problem, help please!
 
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Do you know the "ideal gas law"?
 
to figure this out use

CHARLES'S LAW:
V1 = T1
V2 T2


you know both the initial and final volumes and the initial and final tempertatures, just plug them into the equation, but remember that temerature is in Kelvins, not C and definatly not F.
to get Kelvins from C, add 273.


here is a page that explain all the gas laws in more detail:
http://www.chemtutor.com/gases.htm
 
Charles' Law is okay, but if you find it hard to memorize all of the equations, then just use [itex]\displaystyle P\times V = n\times R\times T[/itex], but omit pressures, mole amounts, and Rydberg's constant, so what you'll get is plain Charles' Law.
 
I agree. I never memorized all the relationships between P, V, and T; they are all in the ideal gas law (memorize that, though).
 
mrjeffy321 said:
...but remember that temerature is in Kelvins, not C and definatly not F...
But you can use R if you like! ;) (R = F + 460)
 

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