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温度升高，气体的无秩序热运动增强，气层之间的加速和阻滞作用跟着增加，内摩擦也就增加。所以，气体的粘度随着温度的升高而加大，与液体的粘度随温度升高而降低不同。随着压力升高，气体的性质逐渐接近液体，温度对粘度的影响，也越来越接近于液体。When the temperature increases, the disorderly thermal motion of gas increases, and the acceleration and retarding between gas layers increase accordingly, and the internal friction also increases. So the viscosity of a gas increases with temperature, not the viscosity of a liquid decreases with temperature. As the pressure increases, the properties of gases become closer to liquids, and the effect of temperature on viscosity becomes closer to liquids.
A.
正确
B.
错误
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【单选题】温度升高 100K ,下列反应的 D S ( )。 NH 3 (g) + 3Cl 2 (g) = N 2 (g) + 6HCl (g) △H θ 298 = - 461.5 kJ / mol
A.
>> △S θ 298
B.
<θ 298
C.
≈ △S θ 298
D.
≡△S θ 298
【单选题】Is the customer always right The answer, it seems, depends on which country you are in. Shopping is very much a part of a country’’s culture, and attitudes to shopping and consumers vary from country ...
A.
It takes advantage of shop assistants.
B.
It has been dreamt of by the Europeans.
C.
It may not be suitable to the European society.
D.
It is not applicable in times of economic difficulty.
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【单选题】温度升高 100K ,下列反应的 D S ( )。 NH 3 (g) + 3Cl 2 (g) = N 2 (g) + 6HCl (g) △H θ 298 = - 461.5 kJ / mol
A.
>> △S θ 298
B.
<θ 298
C.
≈ △S θ 298
D.
≡△S θ 298
【单选题】Is the customer always right The answer, it seems, depends on which country you are in. Shopping is very much a part of a country’’s culture, and attitudes to shopping and consumers vary from country ...
A.
It takes advantage of shop assistants.
B.
It has been dreamt of by the Europeans.
C.
It may not be suitable to the European society.
D.
It is not applicable in times of economic difficulty.
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