Question

Olympic cyclists fill their tires with helium to make them lighter. Assume that the volume of the tire is 860 mL , that it is filled to a total pressure of 125 psi , and that the temperature is 23 ∘C. Also, assume an average molar mass for air of 28.8 g/mol. Part A: Calculate the mass of air in an air filled tire. Part B: Calculate the mass of helium in a helium filled tire. Part C: What is the mass difference between the two?

Name: olympic cyclists fill their tires with helium to make them lighter assume that the volume of the tire is 860 ml that it is filled to a total pressure of 125 psi and that the temperature is 2 57065
Uploaded: 2021-10-19T06:02:12-08:00
Duration: 5 min 42 s
Channel: Ramesh Rajak
Description: olympic cyclists fill their tires with helium to make them lighter assume that the volume of the tire is 860 ml that it is filled to a total pressure of 125 psi and that the temperature is 2 57065

          Olympic cyclists fill their tires with helium to make them
lighter. Assume that the volume of the tire is 860 mL , that it is
filled to a total pressure of 125 psi , and that the temperature is
23 ∘C. Also, assume an average molar mass for air of 28.8 g/mol.
Part A: Calculate the mass of air in an air filled tire. Part B:
Calculate the mass of helium in a helium filled tire. Part C: What
is the mass difference between the two?

Added by William H.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Ramesh Rajak

10/19/2021

Step 1

Given: Volume of tire (V) = 860 mL = 0.86 L Total pressure (P) = 125 psi = 125 * 0.068 atm = 8.5 atm Temperature (T) = 23°C = 296 K Molar mass of air (M) = 28.8 g/mol Using the ideal gas equation: PV = nRT n = PV / RT n = 8.5 * 0.86 / (0.0821 * 296) n = 0.3 Show more…

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Olympic cyclists fill their tires with helium to make them lighter. Assume that the volume of the tire is 860 mL , that it is filled to a total pressure of 125 psi , and that the temperature is 23 ∘C. Also, assume an average molar mass for air of 28.8 g/mol. Part A: Calculate the mass of air in an air filled tire. Part B: Calculate the mass of helium in a helium filled tire. Part C: What is the mass difference between the two?