\(\Rightarrow {T_2} = 2 \times {T_1}\) \( = 2 \times (273 + 0) = 546K\)
\(\Rightarrow\) \({T_2} = 273 \times 2 = 546K\)
\(\Rightarrow 273^\circ C\) \(\Rightarrow 273\) \(^\circ\)\( C\)
$\left(\right.\left.{k}_{{B}}=1.38 \times 10^{-23} \, {J} / {K}\right)$