**Q2: **

When one inflates a balloon, the pressure of gas inside the balloon varies directly with the quantity of gas injected inside (the unit for this is moles), and the pressure varies inversely with the volume of the balloon (which increases when the balloon expands). Assume that the temperature of the gas inside the balloon is constant.

Write an equation for the pressure of gas inside the balloon () in terms of the quantity of gas inside the balloon () and the volume of the balloon (). Let be a constant.

Given that the pressure inside the balloon is 1.1 bars with 0.089 moles of air inside the balloon of volume 2 dm^{3}, find the pressure inside the balloon
when there are 0.24 moles of air and its volume is 4 dm^{3}. Round your answer to one decimal place.