[問題] 理想氣體的能量密度
小弟之前就有這個疑問了
氣體動力學裡面再推導壓力的時候推出
p=2/3(N/V)(mv^2)/2
壓力=2/3每單位體積的分子數*平均動能
如果合併式子
p=2/3(E/V)
壓力=能量密度的2/3倍
這樣有物理意義嗎?
可以問剩下的1/3提供了哪些效應嗎?
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