The volume of a gas, V, in liters, at a constant temperature, varies inversely with its pressure P in atmospheres. The pressure acting on 15L of air is raised from 1 atmosphere to 2 atmospheres while temperature is kept constant. A. Write the equation of the inverse equation. B. Then find the volume of the air when the pressure is 2 atmospheres. C. What pressure is needed to increase the volume of air to 5 L, at constant temperature