关于气体的压强,下列说法中正确的是A.气体的压强是由气体分子

关于气体的压强,下列说法中正确的是

A.气体的压强是由气体分子间的相互排斥产生的

B.气体的压强是由于气体分子频繁的撞击器壁产生的

C.气体分子的平均动能增大,气体的压强一定增大

D.当某一容器自由下落时,容器中的气体压强将变为零

 

答案

B

解析:略

 

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