7A-C/D Win 09Quiz 5DL SecLast 6 digits ID #Name (Last, First)GradeConsider a piston containing 1 moleof diatomic H2gas (molecular weight = 2 g/mol) and 5 molesof monatomicAr (atomic weight = 40 g/mol), with both gases initially at T = 300 K. The temperature remains low enough in allproblems so that the vibrational modes of the H2remain completely frozen. The gases are always in equilibriumwith each other, so they both have the same temperatures.1a) Which gas has higher average molecular speed, or are they the same? Explain.Equipartition says each mode gets 1/2 kT energy. For molecular speed all that matters is how many translationalKE modes each molecule has, and for either type of gas there are 3 KEtransmodes per molecule and thus 3/2 kT oftranslational KE. But the argon has more mass per molecule than the hydrogen, so with the same KE permolecule the hydrogen has a greater average speed.1b) If we increase the temperature by 20 K, which gas has a larger change in internal energy (∆
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