Volume of Air in Cylinder at 20°C - Calculating with Ideal Gas Law

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SUMMARY

The discussion centers on calculating the volume of air in a cylinder using the Ideal Gas Law, specifically under varying temperature conditions. The user inquires whether to calculate the initial volume based on cylinder dimensions and then apply the Ideal Gas Law to find the volume at a final temperature of 20°C, given an initial temperature of 25°C. It is confirmed that the volume of the cylinder is primarily determined by its dimensions and does not significantly depend on temperature for practical calculations. The consensus is to use the calculated volume directly for the air in the cylinder at 20°C.

PREREQUISITES
  • Understanding of the Ideal Gas Law (PV=nRT)
  • Basic geometry for calculating cylinder volume
  • Knowledge of temperature units and conversions
  • Familiarity with standard conditions in gas calculations
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  • Learn about the effects of temperature on gas volume
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Students in physics or chemistry, engineers working with gas systems, and anyone involved in thermodynamics or fluid mechanics will benefit from this discussion.

Daniiel
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I just have a question, I just want to double check somthing.
Say if your asked to calculate the volume of a square, the answer you get is assuming standard conditions right?

I have a question that asks for the volume of air in a cylinder.
It gives the dimensions of the cylinder and the temperature the cylinder is at the initial point.

Would I calculate the volume then use the ideal gas law to calculate the volume at final temperature 20, initial temperature 25 and initial volume (calculated using dimensions)

or would i juts calculate the volume and leave that as the answers for the volume of air in the cylinder at 20 degrees celsius?
 
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Volume of the cylinder doesn't depend on the temperature (well, to some small extent it does, but when dealing with gases you can neglect it).
 
okay sweet
i was just getting paranoid about an easy answer then
thanks borek
 

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