A vessel containing a classical non-relativistic ideal gas is studied, which has a small hole. Gas effuses through this hole, but the hole is so tiny that the gas inside the vessel remains homogeneous. The density and the temperature of the gas inside the vessel are obtained as functions of time.

中文翻译：

---

气体通过小孔喷出

研究了一个含有经典非相对论理想气体的容器，它有一个小孔。气体通过这个孔流出，但这个孔很小，容器内的气体保持均匀。获得容器内气体的密度和温度作为时间的函数。