Calculate pressure in temperature changes

In summary, the conversation discusses calculating the pressure exerted by helium inside a toy balloon at an altitude of 2500 meters above the street, where the temperature is 23 degrees F. The individual seeking help is unsure of which formula to use, but is advised to use the ideal gas equation, PV=nRT, by converting the units of temperature, volume, and mass. They express gratitude for the suggestion and confirm that their answer was correct.
  • #1
fran2000
2
0
A toy balloon if filled with 0.150 grams of hellium and ocupied a valume of 4250.0 Cm3. It rises 2500 miters above the street where temperature is 23 degrees F. Calculate the pressure that the hellium exert inside the balloon at this altitud.

Please anyone who can help me. I thing I have to use the pressure formula or the combine formula. Not sure.. Anyone please I have to turn in my take home test today at 10:00 am.
 
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  • #2
If you assume that the helium behaves as an ideal gas you can use the ideal gas equation, PV=nRT. Just convert F to C, Vol to L, g to mol. Plug and chug.
 
  • #3
sorry not F to C, but F to Kelvins
 
  • #4
Thanks gravenewworld, Many thanks to you.

I apreciate the help and I hope that the Lord bless you with many good things. Your suggestion was perfect and the anwer I came up with was right. Thanks a bunch..
 

FAQ: Calculate pressure in temperature changes

What is the formula for calculating pressure in temperature changes?

The formula for calculating pressure in temperature changes is P1/T1 = P2/T2, where P1 and T1 are the initial pressure and temperature, and P2 and T2 are the final pressure and temperature.

How does temperature affect pressure?

Temperature and pressure have a direct relationship, meaning that as temperature increases, pressure also increases. This is because as temperature increases, the molecules in a substance move faster and collide more frequently, resulting in a higher pressure.

What units are used to measure pressure and temperature?

Pressure is typically measured in units of Pascals (Pa) or atmospheres (atm), while temperature is measured in degrees Celsius (°C) or Kelvin (K).

Can pressure be calculated in other temperature scales besides Celsius?

Yes, pressure can be calculated using other temperature scales such as Fahrenheit or Kelvin. However, the values for temperature must be converted to Celsius before using the formula for calculating pressure.

How does changing the volume affect pressure in temperature changes?

According to the ideal gas law, pressure and volume have an inverse relationship, meaning that as volume decreases, pressure increases and vice versa. This means that as temperature increases and pressure increases, the volume of a gas will also increase to maintain a constant pressure.

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