Answer
4.00 atm
Work Step by Step
$P_{1}= 3.74\,atm$
$T_{1}= (15+273)K=288\,K$
$T_{2}= (35+273)K=308\,K$
According to Gay Lussac's law, if n and V are constant:
$\frac{P_{1}}{T_{1}}=\frac{P_{2}}{T_{2}}$
$\implies P_{2}=\frac{P_{1}T_{2}}{T_{1}}=\frac{3.74\,atm\times 308\,K}{288\,K}$
$=4.00\,atm$
