试题与答案

一定质量的气体,气体分子之间相互作用力可忽略不计,现使其温度降低而压强变大,达到

题型:选择题

题目:

一定质量的气体,气体分子之间相互作用力可忽略不计,现使其温度降低而压强变大,达到新的平衡后(   )

A.气体的密度变大

B.气体分子无规则运动的平均动能变大

C.每个分子无规则运动的速率都变大

D.每个分子无规则运动的速率都变小

答案:

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