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Physics and Chemistry Comprehensive Practice Questions and Answers for Adult College Entrance Examination in 2020 9

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    【Abstract】 Physical-chemical integration of adult college entrance examination is a more important subject than that of college entrance examination candidates. For the convenience of candidates, I compiled the physical and chemical synthesis for the college entrance examination for adults. The following is "Physics and Chemistry Comprehensive Practice Questions and Answers for Adult College Entrance Examination for 2020". I hope it will be useful to everyone!

    Recommended reading: 2020 Physics and Chemistry Comprehensive Practice Questions and Answers for Adult College Entrance Examination

    Physics and Chemistry Comprehensive Practice Questions and Answers for Adult College Entrance Examination in 2020 9

    Multiple choice

    1. The well-known hypothesis that various gases of the same volume at the same temperature and pressure have the same number of molecules.

    A. Boyle B. Gay-Lussac

    C, Dalton D, Avogadro

    2. For the actual gas, which of the following situations, its behavior is similar to the ideal gas? B

    A, high temperature and high pressure; B, high temperature and low pressure; C, low temperature and high pressure; D, low temperature and low pressure.

    3. If the composition of the air is 21.0% (volume) O2 and 79% N2, the atmospheric pressure is 740 mmHg. Then the closest value of the partial pressure of O2 is C

    A, 300 mmHg; B, 550 mmHg; C, 155 mmHg; D, 284 mmHg.

    4. The value of the general molar gas constant R is B

    A, 82.06 L · atm · K-1 · mol-1; B, 8.314 J · K-1 · mol-1;

    C, 1.987 cal · atm · K-1 · mol-1; D, 0.082 cal · K-1 · mol-1.

    5. When using the compression factor to discuss the actual gas, if Z> 1, it means the gas B

    A, easy to compress; B, not easy to compress; C, easy to liquefy; D, not easy to liquefy.

    6. The establishment of a two-parameter generalized compression factor graph is based on C

    A. Van der Waals equation; B. Ideal gas equation of state;

    C, corresponding state principle; D, characteristic critical parameters of different substances.

    7. If the volume of an actual gas is less than the volume of an ideal gas at the same temperature and pressure, the compression factor Z should be C

    A, equal to zero; B, equal to 1; C, less than 1; D, greater than 1.

    8. In the van der Waals equation, when the actual gas is treated as an ideal gas, the number of correction factors that should be introduced is C

    A, 4; B, 3; C, 2; D, 1.

    9. Gas pressure can be expressed in different units. In conversion, which conversion factor is equivalent to 1 atm? C

    A, 101325 Pa; B, 1.01325 bar; C, 76 Torr; D, 760 mmHg.

    10. At 1 atm, when 1 L gas is heated from 0 ° C to 273 ° C, its volume will become B

    A, 2.5 L; B, 2.0 L; C, 3.0 L; D, 0.5 L.

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