According to the ideal gas state equation: PVT = K.
When the gas temperature is T 1, as can be seen from the above figure, P 1 > P2, so V 1 < V2.
According to the gas equation: p1v1t1= p2v2t2.
According to the topic, the pressure is inversely proportional to the thermodynamic temperature, that is, p 1p2=T2T 1.
The above two formulas are expressed simultaneously: V2 = T22 1V 1.
So choose: D.