$\mathrm{}$During inhalation, a person$$s diaphragm, and intercostal muscles contract, expanding the chest cavity and lowering internal pressure below ambient so the air flows in through the mouth and nose to the lungs. Suppose a person$$s lung holds $1250$ mL of air at a pressure of $1\mathrm{.}00$ atm. If the person expands the chest cavity by $525$ mL while keep the nose and mouth closed, what will be the pressure in the lungs in atm? Assume the air pressure remains constant in the process.