Question

9. A balloon is filled with 1000 cm3 of a gas weighing 1000 g. Will it rise or fall when it is released?

Answer 1

We can calculate the density of the balloon as follows:

`\rho=(mass)/(volume)=(1000g)/(1000cm^3)=(1g)/(cm^3)`

Therefore, the balloon will fall

Since the density of air is about 0.00123 g/cm^3 , the balloon is much more dense than the surrounding air. As a result, the balloon weighs more than the air that it displaces so the balloon will fall.