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What is the average translational kinetic energy of one molecule of an ideal gas at temperature T?
A(3/2) kB T
B(1/2) kB T
C(5/2) kB T
D3 kB T
Answer & Solution
Correct answer: A. (3/2) kB T
Three translational degrees of freedom each carry (1/2) kB T, giving (3/2) kB T per molecule.
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