for each $($select$)$ the options are could possibly cause observed volume change or could NOT possibly cause observed volume change A quantity of $O_2$ occupies a volume of $1\mathrm{.}2L$ at $25C$ and $724$ torr. The gas

expands to a volume of $3\mathrm{.}0L$ as the result of a change both in pressure

and temperature.

Which of the following changes to pressure and temperature could

possibly. have resulted in the observed change in volume?

Both pressure and temperature increased

Both pressure and temperature decreased

Pressure increased and temperature decreased

Pressure decreased and temperature increased