Question

A 3.44 mol diatomic gas initially at 346 K undergoes this cycle: It is (1) heated at constant volume to 909 K, (2) then allowed to expand isothermally to its initial pressure, (3) then compressed at constant pressure to its initial state. Assuming the gas molecules neither rotate nor oscillate, find (a) the net energy transferred as heat to the gas (excluding energy transferred as heat out of the gas), (b) the net work done by the gas, and (c) the efficiency of the cycle?

Answer #1

A 1.79 mol diatomic gas initially at 274 K undergoes this cycle:
It is (1) heated at constant volume to 707 K, (2) then allowed to
expand isothermally to its initial pressure, (3) then compressed at
constant pressure to its initial state. Assuming the gas molecules
neither rotate nor oscillate, find (a) the net energy transferred
as heat to the gas (excluding energy transferred as heat out of the
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In this problem, 1.00 mol of an ideal diatomic gas is heated at
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2.)1.0 mol sample of an ideal monatomic gas originally at a
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(ii) It is compressed at
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J

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n = 2.58 mol of Hydrogen gas is initially at T = 376 K
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