Charles' Law Math Problem: Volume Change at Constant Pressure

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SUMMARY

The discussion centers on solving a Charles' Law problem involving the volume change of a gas at constant pressure when its temperature changes from 38°C to 132°C. The correct approach involves using the equation V1/T1 = V2/T2, leading to the ratio V2/V1 = T2/T1. The user initially misapplied the law by not converting temperatures to Kelvin, which is essential for accurate calculations. The final volume change factor is determined to be 66/19.

PREREQUISITES
  • Understanding of Charles' Law in thermodynamics
  • Knowledge of temperature conversion from Celsius to Kelvin
  • Familiarity with algebraic manipulation of equations
  • Basic principles of gas behavior under constant pressure
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  • Learn about the Ideal Gas Law and its applications
  • Study temperature conversion techniques, specifically Celsius to Kelvin
  • Explore real-world applications of Charles' Law in engineering
  • Investigate common mistakes in gas law calculations and how to avoid them
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Students studying thermodynamics, physics educators, and anyone needing to understand gas behavior under varying temperature conditions.

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Homework Statement


A gas is kept at constant pressure. If its temperature is changed from 38 to 132°C, by what factor does the volume change?

Homework Equations


V1T2=V2T1

The Attempt at a Solution


V1*132=V2*38
V2/V1=132/38
V2/V1=66/19

Am I just reading something wrong or did just use the wrong law or something?
 
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solved my problem. I needed to first convert the temp to kelvin then invert that number to get my factor.
 

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