Stays a gas, but now the pressure is less, the temperature is less.

它仍然是气态但现在压强变小了，温度降低了。

麻省理工公开课 - 热力学与动力学课程节选

If p2, the pressure in p2, is less than the pressure in p1, is the gas going to want to go from p2 to p1 and the whole thing reverse back?

比p1中的压强小,在整个逆向过程中气体,会从p2到p1中去吗？

麻省理工公开课 - 热力学与动力学课程节选

All right, so gamma, the gas is cooling so V2 is going to be less than it what would be if the temperature kept constant.

气体温度下降了,于是V2会比等温过程,降到相同压强时的体积要小。

麻省理工公开课 - 热力学与动力学课程节选