\(T_{1} V_{1}^{\gamma-1}=\mathrm{T}_{2} V_{2}^{\gamma-1}\)
\(\Rightarrow T(V)^{1 / 2}=\mathrm{T}_{2}\left(\frac{V}{4}\right)^{1 / 2}\)
\(\left[\because \gamma=1.5, T_{1}=T, V_{1}=V \text { and } V_{2}=\frac{V}{4}\right]\)
\(\therefore \quad T_{2}=\left(\frac{4 V}{V}\right)^{1 / 2} T=2 T\)