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Solved: Olympic cyclists fill their tires with helium to
Chapter 11, Problem 126P(choose chapter or problem)
Olympic cyclists fill their tires with helium to make them lighter. Calculate the mass of air in an air-filled tire and the mass of helium in a helium-filled tire. What is the mass difference between the two? Assume that the volume of the tire is 855 mL, that it is filled with a total pressure of 125 psi, and that the temperature is \(25^{\circ} \mathrm{C}\). Also, assume an average molar mass for air of 28.8 g/mol.
Equation Transcription:
Text Transcription:
25 degrees C
Questions & Answers
QUESTION:
Olympic cyclists fill their tires with helium to make them lighter. Calculate the mass of air in an air-filled tire and the mass of helium in a helium-filled tire. What is the mass difference between the two? Assume that the volume of the tire is 855 mL, that it is filled with a total pressure of 125 psi, and that the temperature is \(25^{\circ} \mathrm{C}\). Also, assume an average molar mass for air of 28.8 g/mol.
Equation Transcription:
Text Transcription:
25 degrees C
ANSWER:
Step 1 of 4
According to the ideal gas equation;
Here,
P = Pressure of the gas
V = Volume
T = Temperature
R = Gas constant
n = Number of moles