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武汉理工大学《概率论与数理统计》复习重点笔记

武汉理工大学《概率论与数理统计》复习重点笔记
武汉理工大学《概率论与数理统计》复习重点笔记

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1 2 与123 3 K K

p) = NH p p p) = NO) + p p

12 12 ΔA = ΔG = -TΔS = -4014.3J (7分)(2)W=-p eΔV = -1995.4J (1分)Q=-W=1995.4J (1分)

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Material:Solids used by man kind to produce items which constitute the support for his living environment Characteristics of materials ◆Have certain compositions; ◆Can be processed; ◆With certain shape and color; ◆Can be used and reused or recycled. ◆特点: ?具有一定的成分和配比; ?可成型加工; ?保持一定形状和外观; ?具有使用价值并可回收再利用。 材料性能的决定因素 ◆组成材料的各元素的原子结构, ◆原子间的相互作用、相互结合, ◆原子或分子在空间的排列分布和运动规律, ◆原子集合体的形貌特征。 Classification of materials ◆Atomic structures ◆Nature of chemical bonds: ?Metallic bond 金属键 ?Ionic bond 离子键 ?Covalent bond 共价键 ?Secondary bond 次价键 ?Van der Waals bond 范德华力 ?Hydrogen bond 氢键 Classification: ◆metals and their alloys:- metallic bonding ◆Organic polymers: Covalent bonding & secondary bonding ◆Ceramics:Ionic bonding & covalent bonding

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,反应 1 的关系为 212 = 1212121 2

A

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………… 试卷装订线……………… 装订线内不要答题,不要填写考生信息………………试卷装订线…………

试卷装订线……………… 装订线内不要答题,不要填写考生信息………………试卷装订线 …………

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