A 0.2m3 rigid tank initially contains pure oxygen gas (02) at 20°C and 1000 kPa. The tank containing the oxygen is put on a scale to measure its mass. The initial mass is recorded as 110.4 kg. Nitrogen gas is injected isothermally into the tank until the scale reads 121.0 kg. The molar mass of oxygen is 32kg/kmol and the molar mass of nitrogen is 28 kg/kmol. Assuming that the gases behave ideally, answer the following questions: a) What is the mass of the empty tank? b) What is the composition of the final mixture on a mole basis? c) What is the final pressure of the tank?

A 0.2m3 rigid tank initially contains pure oxygen gas (02) at 20°C and 1000 kPa. The tank containing the oxygen is put on a scale to measure its mass. The initial mass is recorded as 110.4 kg. Nitrogen gas is injected isothermally into the tank until the scale reads 121.0 kg. The molar mass of oxygen is 32kg/kmol and the molar mass of nitrogen is 28 kg/kmol. Assuming that the gases behave ideally, answer the following questions: a) What is the mass of the empty tank? b) What is the composition of the final mixture on a mole basis? c) What is the final pressure of the tank?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

A 0.2m3 rigid tank initially contains pure oxygen gas (02) at 20°C and 1000 kPa. The
tank containing the oxygen is put on a scale to measure its mass. The initial mass is
recorded as 110.4 kg. Nitrogen gas is injected isothermally into the tank until the
scale reads 121.0 kg.
The molar mass of oxygen is 32kg/kmol and the molar mass of nitrogen is 28
kg/kmol.
Assuming that the gases behave ideally, answer the following questions:
a) What is the mass of the empty tank?
b) What is the composition of the final mixture on a mole basis?
c) What is the final pressure of the tank?
d) The critical temperature and pressure of oxygen are 154.6K and 49.8atm. Based
on these properties, comment on the appropriateness of using the ideal gas law in
part a)

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