6. About the monoatomic ideal gas, which of the following description is correct, (A)(\( \partial \)U/\( \partial \)V)T < 0 (B)(\( \partial \)T/\( \partial \)P)H = 0 (C)\( \alpha \) = (1/V)(\( \partial \)V/\( \partial \)T)P = 1/273 (D)S = CV/R (E)CP = 3R/2

8. About ideal gas, (A)An ideal gas is an assemblage of volumeless noninteracting particles which obeys the ideal gas law, PV = RT. (B)The internal energy of an ideal gas arises solely from the translational motions of the gas particles and hence is a function only of temperature, (C)The enthalpy of an ideal gas is a function only of temperature, (D)The internal energy U is constant with respect to the gas volume, i.e. (dU/dV)T = 0, hence the pressure P can be expressed as P = (dS/dV)T, (E)The above are all correct.

6. About the monoatomic ideal gas, which of the following description is correct,
(A)(\( \partial \)U/\( \partial \)V)_T < 0
(B)(\( \partial \)T/\( \partial \)P)_H = 0
(C)\( \alpha \) = (1/V)(\( \partial \)V/\( \partial \)T)_P = 1/273
(D)S = C_V/R
(E)C_P = 3R/2

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