A balloon contains 7 L of He. The pressure is reduced to 2 atm
and the balloon expands to occupy a volume of 25 L. What was
the initial pressure exerted on the balloon? (round to the
nearest whole number)
What is P1
atm
What is V1
What is P2
atm
What is V2

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.