Question

A partially inflated weather ballon has a volume of 1.56*10^3 L and a pressure of 98.9 kPa. What is the volume of the ballon when the ballon is released to a height where the pressure is 44.1 kPa

Answer 1

One medal as reward.

Answer 2

Look at the main formula PV = nRT. Now in real life, as the balloon rises the temperature is going to change, but we're assuming it remains constant. R is the gas constant , and n, the number of moles of gas is constant.

So the whole right side is a constant, which we really don't know the value of, but we really don't care, either.
\[P _{i}V _{i}=k \] and\[P _{f}V _{f}=k\]

The value of k is the same in both equations.