The six carbon atoms form a perfectly regular hexagon. All of the carbon-carbon bonds have exactly the same lengths - somewhere between single and double bonds. There are delocalized electrons above and below the plane of the ring, which makes benzene particularly stable.
As we know that <span>V1/T1 = V2/T2 V1 = 9.10 L T1 = 471 K V2 = 2.50 L T2 = 2.5 x 471 / 9.10 = 129.3 K T2 = 129.3 - 273 = -143.6 deg Celsiu hope it helps</span>
