Which formula compares a sample of a gas under two different conditions of pressure and volume, if the temperature is constant?

⚪︎ x/y = k
⚪︎ xy = k
⚪︎ PV = k
⚪︎ V/T = k
⚪︎ P1V1 = P2V2

Which formula compares a sample of a gas under two different conditions of pressure and volume if the temperature is constant xy k xy k PV k VT k P1V1 P2V2 class=