And so just like here, w2 now q2 is minus w2, that's integral going from three to four p dV.

就跟这儿一样，现在是q2等于负，等于从第三点到第四点过程的pdv的积分。

麻省理工公开课 - 热力学与动力学课程节选

So it's, this is just the integral pdv And it's an ideal gas, isothermal, right.

从一点到二点的,的积分。，from，one，to，two，of，p，dV。,这是理想气体，恒温过程，好的。

麻省理工公开课 - 热力学与动力学课程节选