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A gas contains a mixture of He and Ne. The gas is at a temperatureof 456 K, with 0.54 mol of He and 4 mol of Ne.What is the averagekinetic energy per molecule of He? Avogadro’s number is6.02 × 1023mol−1, and Boltzmann’s constant is 1.38 × 10−23J/K.

Answer in units of J.

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Sixta Kovacek
Sixta KovacekLv2
25 Mar 2019

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

Consider neon, a noble gas whose molecules
consist of single atoms of atomic mass
0.02 kg/mol.
Avogadro’s number is 6.02 × 1023 mol-1,
and Boltzmann’s constant is 1.38×10-23 J/K.
What is the average kinetic energy of a
neon atom when the gas is at a temperature
of 350 K?
Answer in units of J.

1. The ideal gas law is given as PV = nRT, where n is the number ofmoles of gas (1 mole = 6.02 * 10^23 molecules) and R is theuniversal gas constant (R = 8.31 J/mol-k). Explain why the productof pressure and volume is constant in an isothermal process.Explain why the ratio of pressure and temperature is constant in anisovolumetric process.

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4. Based on the kinetic theory definition of temperature as theaverage kinetic energy of a molecule in an ideal gas and youranswer to question 1, explain why the pressure of a gas increaseswhen its temperature is increased while its volume is keptconstant.

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