精華區beta NTU-Exam 關於我們 聯絡資訊
課程名稱︰普通化學甲 課程性質︰系定必修 課程教師︰陳藹然 開課學院:工學院 開課系所︰化工系 考試日期(年月日)︰96/10/30 考試時限(分鐘):110分鐘 是否需發放獎勵金:是 (如未明確表示,則不予發放) 試題 : 1st Examination of General Chemistry A total score:120 1.Derive the energy levels of a particle of mass m in an one-dimensional box of side L are E=(nh)^2/(8mL^2) n=1,2,....(10%) Hints:standing wave and de Broglie relation. 2.Write five methods of producing H2.(10%) 3.Predict the products of each chemical reaction, and then balance the equations.(15%) (a)Na2O2+CO2→ (b)electrolysis of molten lithium hydride (c)RbHCO3+H2SO4→ (d)CaC2+H2O→ (e)D2O+CsH→ (f)Sr+O2→ (g)thermal decomposition of CaCO3 4.Describe the evolution and histroy of atomic theory.(10%) Hints:Bohr,Thomson.Dalton,current model,Rutherford. 5.Explain what is meant by each term:(a)absorbance and emission spectrum (b)blackbody radiation (c)Zeff (d)radial probability (e)laser (20%) 6.Draw the orbital energy level diagrams for the hydrogen atom and for a typical multi-electron atom, and discuss their differences. 7.(a)Arrange the following gaseous species in order of increasing radius, and justify your decisions:Mg2+,P3-,S2-,F-,N3-. (5%) (b)Arrange each set of elements in order of increasing magnitude of electron affinity and justify your decisions:Na,Rb,P,C,K,Ge. (5%) (c)Arrange the following gaseous species in order of increasing radius, and justify your decisions:Ca2+,Cr2+,K+,Cr3+,Cs+. (5%) 8.(a)Classify these elements as either electrical insulations, electrical conductors, or substances with intermediate conductivity:S,Ba,Fe,Al,B,O,C,P. (b)what conclusions can you draw with regard to the relationship between valence electron configurations, electronegativity and electrical properties? (10%) 9.(a)Using arguments based on ionic size, charge, and chemical reactivity; explain why beryllium oxide is amphoteric. (b)What element do you expect to be most similar to beryllium in its reactivity? Explain your answer. (10%) 10.(a)What are quantum numbers? (b)what imformation they provide about the spatial distribution of the eletron. (10%) -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 218.169.55.135