题目内容
（请给出正确答案）
A.减小、减小
B.增大、减小
C.减小、增大
D.增大、增大
参考答案
简答题官方参考答案
（由简答题聘请的专业题库老师提供的解答）
网友提供的答案
更多“气体与液体的粘度随着温度的升高分别（)。”相关的问题
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.
气体的粘度随压力增高而增高。在低压时，气体粘度随温度升高而增加，随着压力的增加，温度升高对粘度增大的影响越来越小，当压力很高时（100×105Pa以上），气体粘度随温度升高而降低，明显表现出类似于液体的性质。Table 1-13 shows the dynamic viscosity of methane at different pressures and temperatures. It can be seen from the table that the viscosity of gas increases with the increase of pressure. At low pressure, the gas viscosity increases with the increase of temperature. With the increase of pressure, the influence of temperature increase on the increase of viscosity becomes smaller and smaller. When the pressure is very high (100×105Pa and above), the gas viscosity decreases with the increase of temperature, showing obvious properties similar to liquid.
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