A hot air balloon lifts off from the ground. Before the launch the balloon has a volume of 200 L and the pressure in the balloon is 1.4 atm. When the balloon reaches its final altitude the volume has increased to 400 L . What is the pressure inside the balloon now?

Liquid ammonia is produced at high temperatures and under great pressure in a tank by passing a mixture of nitrogen gas and hydrogen gas over an iron catalyst. the reaction is represented by the following equation. n2(g) + 3h2(g) → 2nh3(g) changing all but one experimental condition will affect the amount of ammonia produced. that condition is a) increasing the concentration of both reactants b) changing the temperature within the tank c) decreasing the pressure within the tank. d) increasing only the amount of nitrogen present.