物理化学上中期练习题.doc

romoting the construction of rule of law, but also the most basic development environment. Despite my good social order in General, but there are law-abiding consciousness, social order is not standard, regardless of faith, Twining visit visit and other outstanding problems. We want to actively promote the field of multi-level governance according to law, promote the continuous improvement of the social environment. To promote universal compliance. Actively foster the rule of law culture, carry out law publicity and education on honesty and trustworthiness, guide the masses and consciously abide by the law, failing to find method, problem-solving method, method of gradually changing the world, he is not looking for but someone unspoken rules, formed all law law, abide by the good atmosphere. To strengthen the comprehensive management of public security. Deepening peace xingan construction, strongly against violence crime, mafia and serious criminal offences, to protect the legitimate rights and interests of citizens, legal persons, carry out criminal policy of temper justice with mercy, the maximum stimulating social vitality, and earnestly safeguard social harmony and stability. To resolve social conflicts by law. To further smooth channels of reporting social conditions and public opinion, improving regulation, arbitration, as wellrelationship between Government and business. The two sessions, General Secretary of Pro, clear the word succinctly summarized the new relationship between Government and business, as pure politics, reshaping the political relationship specified in the direction. District leaders in handling political and business relations, engage in trading power for money, and finally stumbled, we a lesson, always keep in mind that Pro, clean practicing Pro, clear. Pro is to open a sincere engagement with private enterprise to help solve practical difficulties; Clear is to clarify the Division of power, exercised in accordance with, private entrepreneurs with innocent purity, not abusing power for personal gain, not to engage in trading power for money. Third, in order to maintain fairness and justice. Fairness and justice is the lifeline of the rule of law, is the best development environment. Currently, lax law enforcement and the judicial sector in our region also exist to varying degrees, law enforcement departments and individual window units power for personal gains and bribes, thick friends, relations, human cases, money cases in which seriously infringe on the legitimate rights and interests of enterprises and people. Especially some law enforcement and inspection for profit purposes, deliberately looking for corporate loopholes, found directly under the ticket does not give business improvement opportunities. We recruit a company doesnt easily, cultivating a business more difficult, never for personal gain, systematic harassment, card, last checked to check to get the enterprise collapsed. To guarantee the legitimate rights and interests. Always proceed from the overall situation of reform and development of services, fully consider the characteristics of production and management in non-public enterprises and social benefits, an accurate grasp of legal limits, protect the enthusiasm of entrepreneurs and practitioners in innovation and entrepreneurship, enhancing expectations and confidence. To promote strict enforcement. Strengthening law enforcement procedures, improve law enforcement performance evaluation, strengthening the supervision of law enforcement, exploration and practice of risk control mechanism of law enforcement to further standardize the social security, urban management, road traffic administrative law enforcement, effectively free, extensive law-enforcement and lax enforcement of law enforcement and other issues. To uphold justice. Justice is the last line of Defense to safeguard fairness and justice, to unequivocally support the courts and procuratorates independently exercise level . Judicial activities were rampant, must not be allowed to run, favors, money, must not be allowed to knowingly violate the miscarriage, violations of the legitimate rights and interests of the masses must not be allowed to abuse of power, to make forest mass can be felt in every judicial cases in equity and justice. Four to deepen grass-roots governance according to law物理化学（上）中期试题闭卷考试 时间120分钟一、选择题（每空2分，共30分）1对理想气体的内能，叙述正确的是（ ）A、状态一定，内能一定B、某一状态对应的内能可以直接测定C、某一状态对应的内能可以有2个或2个以上的值D、状态改变，内能一定改变2封闭体系，当状态从到发生变化时经历二条任意的不同途径，则（ ）A、Q1=Q2 B、W1=W2C、 D、3一定量的理想气体，发生下列过程，U和H均不为0的是 （ ）A、绝热向真空膨胀 B、绝热可逆膨胀C、绝热节流膨胀 D、两种理想气体等温混合4理想气体经可逆与不可逆两种绝热过程 （ ）A、可以从同一始态出发达到同一终态B、从同一始态出发，不可能达到同一终态C、不能断定 (A)、(B) 中哪一种正确D、可以达到同一终态，视绝热膨胀还是绝热压缩而定5关于生成焓，下列说法中正确的是 ( )A、化合物的就是1 mol该物质所具有的焓值B、C、D、6在实际气体的节流膨胀过程中，哪一组描述是正确的 （ ）A、Q0，H=0，P0 B、Q=0，H0，P0C、Q=0， H=0，P0 D、Q0，H=0，P07、乙醇完全燃烧时，假设反应物和产物均为25下的正常状态，则正确的是（ ）A、H = U B、H U C、H 0C、S系 0 , S环 = 0 D、S系 0 , S环 013理想气体等温过程的A ( )A、 GB、 , =, , 因为H=U+PV；因为H=U+nRT，而n为正。3、CO(g)4、两个热源的温度， 工作物质5、增大 6、恒温恒容7、34kJ；-20JK-1 8、=四、证明 证明：由 -1分在定温条件下上式除以dV得 -1分已知 代入得 -2分理想气体 在定容条件下对T求偏导数得代入得 -2分这表明理想气体的内能U只是温度T的函数而与体积V无关。 -1分对范德华气体来说，因此 代入得 -2分这表明范德华气体的内能U不仅是T的函数，也是V的函数，在定温下，其内能U随体积V的增大而增大。 -1分五、计算：1、2、由 得 =3（-393.5）+3/2（-285.8）-(-1759.5) kJ.mol-1 =150.3 kJ.mol-1由HCN(g)+C2H2(g)CH2CHCN(l) =（150.3-135.1-226.73 ）kJ.mol-1 = -211.53 kJ.mol-1保证的概念：保证人和债权人约定，当债务人不履行债务时，保证人按照约定履行债务或者承担责任的行为。保证人，有代为清偿能力的法人、其他组织或者公民，可以作为保证人。法律禁止作为保证人的情形romoting the construction of rule of law, but also the most basic development environment. Despite my good social order in General, but there are law-abiding consciousness, social order is not standard, regardless of faith, Twining visit visit and other outstanding problems. We want to actively promote the field of multi-level governance according to law, promote the continuous improvement of the social environment. To promote universal compliance. Actively foster the rule of law culture, carry out law publicity and education on honesty and trustworthiness, guide the masses and consciously abide by the law, failing to find method, problem-solving method, method of gradually changing the world, he is not looking for but someone unspoken rules, formed all law law, abide by the good atmosphere. To strengthen the comprehensive management of public security. Deepening peace xingan construction, strongly against violence crime, mafia and serious criminal offences, to protect the legitimate rights and interests of citizens, legal persons, carry out criminal policy of temper justice with mercy, the maximum stimulating social vitality, and earnestly safeguard social harmony and stability. To resolve social conflicts by law. To further smooth channels of reporting social conditions and public opinion, improving regulation, arbitration, as wellGrass-roots governance according to law is an important foundation for promoting the construction of rule of law, but also the most basic development environment. Despite my good social order in General, but there are law-abiding consciousness, social order is not standard, regardless of faith, Twining visit visit and other outstanding problems. We want to actively promote the field of multi-level governance according to law, promote the continuous improvement of the social environment. To promote universal compliance. Actively foster the rule of law culture, carry out law publicity and education on honesty and trustworthiness, guide the masses and consciously abide by the law, failing to find method, problem-solving method, method of gradually changing the world, he is not looking for but someone unspoken rules, formed all law law, abide by the good atmosphere. To strengthen the comprehensive management of public security. Deepening peace xingan construction, strongly against violence crime, mafia and serious criminal offences, to protect the legitimate rights and interests of citizens, legal persons, carry out criminal policy of temper justice with mercy, the maximum stimulating social vitality, and earnestly safeguard social harmony and stability. To resolve social conflicts by law. To further smooth channels of reporting social conditions and public opinion, improving regulation, arbitration, as well as dispute resolution mechanisms, implement fully the petitioners cases third-party hearings and supervising system of letters and calls, and to resolve the involved law lawsuit into the orbit of rule of law, vexatious, Twining visit visit, disturbing social order and other malicious extortion, resolutely crack down. Five, improving cadres Vitale, provide strong protection for forest development XI General Secretary stressed that the comprehensive revitalization in Northeast China, needs a high quality, solid style, cadres of the dare to play. Cadre cadres is a pledge, should want to do work and able to do good, enthusiasm is paramount. Treat party cadres, it is