高中新课程作业本_化学_选修4-化学反应原理答案（The new curriculum of senior high school chemistry elective operation of the _ _ 4- chemical reaction principle.）.docVIP

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高中新课程作业本_化学_选修4-化学反应原理答案（The new curriculum of senior high school chemistry elective operation of the _ _ 4- chemical reaction principle.）.doc

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高中新课程作业本_化学_选修4-化学反应原理答案（The new curriculum of senior high school chemistry elective operation of the _ _ 4- chemical reaction principle.） Answers and tips Topic 1 chemical reactions and energy changes The thermal effect in the first unit chemical reaction 1. enthalpy change of chemical reaction (1) 1. Delta within =E2-E1 2.D3.B4.D5.B6.D7.C8.A9.A 10.C11.A12.B13.2H2 (g) + O2 (g) 2H2O (L) within =-22.4QkJ mol-1. 2. enthalpy change of chemical reaction (two) 1.C2.D3. (1) =E1-E2 (2) within a H - H, N = N, NHHH391kJ945.6kJ 4. (1) H2 (g) + 12O2 (g) H2O (L) within =-286kJ mol-1 Delta (2) CO (g) +12O2 (g) CO2 (g) within =-283kJ mol-1 Delta (3) C (s) +H2O (g) CO (g) +H2 (g) within =+131.5kJ. Mol-1 (4) SiH4 (g) +2O2 (g) SiO2 (s) +2H2O (g) within =-1427.2kJ mol-15.9.66.14.53. 7.C8.E1E2E3 H1 H29.CO (g) +12O2 (g) CO2 (g) within =-280kJ mol-1. 3. measurement and calculation of reaction heat 1.C2.D3.C4.C5. (1) ring glass stirring rod (2) 3 (3) is small. Because in the experiment process of heat loss (4) does not equal heat of neutralization refers to acid with alkali neutralization reaction to generate the energy released by the 1molH2O, and the dosage of acid. 6. (1) B2H6 (g) +3O2 (g) B2O3 (s) +3H2O (L) = -2165kJ - mol-1 within Delta (2) Fe2O3 (s) + 3CO (g) 2Fe (s) +3CO2 (g) within =-25kJ mol-1 Delta (3) 2C (s) +O2 (g) 2CO (g) Within the =-221kJ mol-17.C8.B. 4. the full use of energy 1.A2.D3.B4.C5.B6.B7.-392.928.-2900kJ mol-1 C4H10 (g) +132O2 (g) 4CO2 (g) +5H2O (L) within =-2900kJ mol-19.D. 10. (1) Mg (OH) 2 and Al (OH) 3 thermal decomposition when absorb a large amount of heat to the ambient temperature is decreased; while generating high temperature stability, good MgO, Al2O3 covered on the surface of combustible materials, flame retardant effect is better (2) Mg (OH) 2Mg (OH) for the 2 heat absorbing efficiency: 81.5kJ - mol-1/58g - mol-1 = 1.41kJ - g-1, Al (OH) 3 absorption efficiency is: 87.7kJ - mol-1/78g - mol-1 = 1. 12kJ, g-1, etc. the quality of Mg (OH) 2 Al (OH) 3 (3) o