32. What is the approximate heat capacity ratio, γ = Cp/Cv, for methane under NTP conditions (298 K and 1 atm)? (A) 1.64 ~ 1.69 (B) 1.36 ~ 1.41 (C) 1.29 ~ 1.34 (D) 1.20 ~ 1.27 (E) None of these.

32. What is the approximate heat capacity ratio, γ = C_p/C_v, for methane under NTP conditions (298 K and 1 atm)?
(A) 1.64 ~ 1.69
(B) 1.36 ~ 1.41
(C) 1.29 ~ 1.34
(D) 1.20 ~ 1.27
(E) None of these.

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統計： A(0), B(3), C(1), D(1), E(0) #3239580

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7. Which of the following statements is incorrect? (A) 2 NO(g) + 2 CO(g) → N2(g) + 2 COz(g) is spontaneous at room temperature, then the reaction has △H >0. (B) The reaction NH3(g) + HCI(g)→ NH4CI(s) can proceed spontaneously at room temperature, so the AH of the reaction is < 0. (C) For the reaction MgCl2(1)→ Mg(I) + Cl2(g) to proceed at a certain temperature, it has △H > 0 and △S > 0. (D) The reaction C(s) + CO2(g)→2CO(g) cannot proceed spontaneously at room temperature, then the reaction has △H > 0. (E) After the coating of copper-plated iron products is broken, the iron products are more likely to corrode than before the damage.

32. What is the approximate heat capacity ratio, γ = C_p/C_v, for methane under NTP conditions (298 K and 1 atm)?
(A) 1.64 ~ 1.69
(B) 1.36 ~ 1.41
(C) 1.29 ~ 1.34
(D) 1.20 ~ 1.27
(E) None of these.

詳解 (共 1 筆)

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