Question

If a scuba diver is to remain submerged of 1 $hr$, what pressure must be applied to force sufficient air into the tank to be used. Assume $0.5d{m}^3$ of air per breath at standard atmospheric pressure, a respiration rate of 38 breaths per minute, and a tank capacity of $30d{m}^3$.(in $atm$)

Answer 1

According to ideal gas equation,
$PV=nRT$
$P\times 30=0.5\times 38\times 60\times 1$
$P=38atm$