天然气临界压力是多少?

2024-12-27 01:55:06
推荐回答(3个)
回答1:

  4.49MPa。
  物质处于临界状态时的压力(压强)。就是在临界温度时使气体液化所需要的最小压力。也就是液体在临界温度时的饱和蒸气压。在临界温度和临界压力下,物质的摩尔体积称为临界摩尔体积。临界温度和临界压力下的状态称为临界状态。

回答2:

临界压力为4.49MPa

回答3:

天然气的临界温度为-82.3℃,临界压力4.58MPa

当温度低于某一数值时,对气体进行加压,都可以等温压缩成液体,但当高于该温度时,无论加多大压,都不能使气体液化。可使气体压缩成液体的这个极限温度称为该气体的临界温度。当温度等于临界温度时,使气体液化时所必须的最低压力称为临界压力。此时的状态称为临界状态。气体在临界状态下的温度、压力、比体积、密度分别称为临界温度、临界压力、临界比体积和临界密度。

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