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101年 - 101 淡江大學 轉學考 物理化學#53085
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題組內容
3. The vapor pressure of a liquid between 15℃ and 35℃ fits the expression: ln(P)= 20.0 — 4000/T where P is pressure in Torr and T is temperature in K. Calculate
(c) the entropy of vaporization at the normal boiling point in J mol
-1
K
-1
. (15 points)
其他申論題
(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)
#193172
【已刪除】2. A system containing 2.0 mol of a perfect gas for which molar heat capacity Cv,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)
#193173
(a) the enthalpy of vaporization in kJ mol-1,
#193174
(b) the normal boiling point in K, and
#193175
(a) equilibrium constant Keq at 500 K;
#193177
(b) standard reaction enthalpy in kJ mol-1 at 500 K;
#193178
(c) standard reaction Gibbs energy in kJ mol-1 at 500 K,
#193179
(d) and standard reaction entropy in J mol-1 K-1 at 500 K. (20 points)
#193180
(a) the half-life time (t1/2) of the reactant A at 300 K.
#193181
(b) the concentration of the product B after 30 min of reaction at 300 K?
#193182