101年 - 101 淡江大學轉學考物理化學#53085

科目：研究所、轉學考(插大)◆物理化學 | 年份：101年 | 選擇題數：0 | 申論題數：14

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所屬科目：研究所、轉學考(插大)◆物理化學

選擇題 (0)

申論題 (14)

(a) a perfect gas,

(b) a real gas obeying the virial equation: PV_m=RT(l+BP) with the second virial coefficient = —20.0 (cm³ mol^-1).

(c) Comment on the Z value obtained as a real gas. Is the attractive or repulsive interaction greater for Ar_(g)? (gas constant R = 8.314 I mol^-1 K^-1) (20 points)

【已刪除】2. A system containing 2.0 mol of a perfect gas for which molar heat capacity C_v,m = 20 J mol^-1 K^-1 is taken through the cycle in the following diagram in the direction indicated by the arrows. Calculate Q, W, △U and AH in kJ for each segment (1→2; 2→3; 3→1) and for the cycle. Display your final answers in a Table like one below on your answer book. (30 points)

(a) the enthalpy of vaporization in kJ mol^-1,

(b) the normal boiling point in K, and

(c) the entropy of vaporization at the normal boiling point in J mol^-1 K^-1. (15 points)

(a) equilibrium constant K_eq at 500 K;

(b) standard reaction enthalpy in kJ mol^-1 at 500 K;

(c) standard reaction Gibbs energy in kJ mol^-1 at 500 K,

(d) and standard reaction entropy in J mol^-1 K^-1 at 500 K. (20 points)

(a) the half-life time (t_1/2) of the reactant A at 300 K.

(b) the concentration of the product B after 30 min of reaction at 300 K?

(c) the activation energy E_a (kJ/mol) for the reaction? (15 points)