中国石油北京《物理化学》第一阶段在线作业（China Petroleum Beijing Physical Chemistry in the first phase of online operation）.docVIP

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中国石油北京《物理化学》第一阶段在线作业（China Petroleum Beijing Physical Chemistry in the first phase of online operation）.doc

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中国石油北京《物理化学》第一阶段在线作业（China Petroleum Beijing Physical Chemistry in the first phase of online operation）

中国石油北京《物理化学》第一阶段在线作业（China Petroleum Beijing Physical Chemistry in the first phase of online operation） 14 spring, 13 autumn, 13 spring, China University of Petroleum PetroChina Beijing - the first phase of online homework Individual choice question In the first question system, the following physical quantities in each group are state functions A, T, P, V, Q B, m, Vm, Cp, Delta V C, T, P, V, n D, T, P, U, W The second problem is that the monatomic ideal gas varies from the A state to the B state, but the change process is unknown, but if the pressure, volume and temperature of the two states of the A and B states have been determined, then the equation can be derived: The work done by A and gas expansion Variation of B and internal energy of gas C, the quality of gas molecules D and the magnitude of heat capacity The third question is the concept of a single valued function that is the system state of the internal energy A and system are in a certain state and have a certain internal energy B, corresponding to a state, can only have a value, can not have more than two values C, changes in state, internal energy must also follow the change D, corresponding to an internal energy value, may have multiple states Fourth, the ideal gas starts from the same initial state (P1, V1, T1). When the constant temperature reversible compression (T), adiabatic reversible compression (I) to the final volume is V2, the absolute value of the work done by the environment to the system is compared: A, WT Wi B, WT Wi C, WT = Wi D and no definite relation Fifth problem 1mol the CV of diatomic ideal gas A, 1.5R B, 2.5R C, 3.5R D, 2R What are the changes in the total entropy of an isolated system with sixth changes under certain conditions? A, unchanged B may increase or decrease C always increases D always decreases Seventh questions: the following gases are dissolved in water solvents. Which gas does not use Henrys law? A, N2 B, O2 C, NO2 D, CO Eighth questions in nature, some trees ca