課程名稱︰物理化學上
課程性質︰必修
課程教師︰陳振中
開課學院：
開課系所︰農化系
考試日期（年月日）︰99/10/21
考試時限（分鐘）：110 mins
是否需發放獎勵金：是
（如未明確表示，則不予發放）
試題 :
1.Calculate the expansion coefficients α and the isothermal compressibility
κ for an ideal gas.(10%)
2.Derive the expression gor van der Waals constants a and b in terms of the
critical temperature and pressure.(15%)
3.Two moles of ideal monatomic gas at 300 K are expanded from 2.0 bar to 1.0
bar. Calculate (a) the work done isothermally and reversibily by system, and
(b) the work done against a constant pressure of 1.0 bar.(16%)
4.Calculate the temperature increase and final pressure of helium if a mole
is compressed adiabatically and reversibly from 44.8 L at 0℃ to 22.4L.(16%)
5.An ideal monatomic gas at 300 K and 1 bar is expanded in a reversible
adiabatic process to a final pressure of 0.5 bar. Calculate q per mole, w
per mole, and ΔU.(15%)
6.What is the heat evolves in freezing water at -10℃.(12%)
Given that H2O(l)=H2O(s) ΔH°(273K)=-6004 J/mol
Cp(H2O,l)=75.3 J/mol K Cp(H2O,s)=36.8 J/mol K
7.(a)Show that the work done by an ideal gas in a reversible adiabatic
expansion from (P1,V1) to (P2,V2) is w=(P2V2-P1V1)/(γ-1)
(b)If Pi=10 bar, Pf=2 bar, Vi=1L, Vf=3.16L, and γ=5/3, how much is work
done?(16%)
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