About 1.2 liters of breath leave our bodies each time we exhale. If this is at standard pressure, how much volume would this breath occupy for a scuba diver at 100 feet below the water's surface (a pressure of about 4.0 atm)?

Equal numbers of moles of he(g), ar(g), and ne(g) are placed in a glass vessel at room temperature. if the vessel has a pinhole-sized leak, which of the following will be true regarding the relative values of the partial pressures of the gases remaining in the vessel after some of the gas mixture has effused?