A balloon is inflated to 4.50 L with nitrogen gas, N2, at a particular initial temperature and pressure, and tied-off. Assume that the temperatures and pressures referred to are always those prevailing inside the balloon.

To what volume will the balloon contract or expand when:

1. The pressure is reduced to one-half the initial value and the Kelvin temperature is reduced to one third of the initial value?

2. The pressure is reduced to one third of the initial value and the Kelvin temperature is doubled?