From pressure law
P1T1= P2T2\;\frac{P_1}{T_1} = \;\frac{P_2}{T_2}T1P1=T2P2
P2_{2}2 = P1×T2T1\;\frac{P_1 \times T_2}{T_1}T1P1×T2
P1_{1}1 = 40mmHg, P2_{2}2 = ?
T1_{1}1 = 298k, T2_{2}2 = 348k
40298= P2348\;\frac{40}{298} = \;\frac{P_2}{348}29840=348P2
P2_{2}2 = 40×348298\;\frac{40 \times 348}{298}29840×348 = 46.71mmHg
