Solution to a physics question from the 2008 basic examination

2009-02-22View Original

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It is known that the number of moles of an ideal gas is ν, the degree of freedom of the gas molecules is i, k is the Boltzmann constant, and R is the molar gas constant. When this gas changes from state 1 (P1, V1, T1) to state 2 (P2, V2, T2), the change in its internal energy is ( ). A. νik((t2-t1))/2 B. i((P2V2 – P1V1))/2 C. iR(T2 – T1)/2 D. νI((P2V2 – P1V1))/2 I think the answer to this question is i((P2V2 – P1V1))/2. This post was last edited by lxq700918 on 2009-2-22 at 20:34

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Solution to a physics question from the 2008 basic examination

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