The gas laws describe the behavior of gases under specific conditions of temperature, pressure, and volume. Three gas laws show the relationship between two variables when all others are held constant: Boyle’s law (pressure and volume are inversely proportional), Charles’s law (volume and temperature are directly proportional), and Gay-Lussac’s law (temperature and pressure are directly proportional). Avogadro's Law shows the relationship between volume and moles of gas particles present when pressure and temperature are controlled.

Select the balloon volume that would represent the following conditions: the moles of particles of gas increases under constant pressure and temperature.

The balloon volume would increase as the moles of gas particles increase under constant pressure and temperature. This is in accordance with Avogadro's Law, which states that the volume of a gas is directly proportional to the number of moles of gas present when pressure and temperature are held constant. Therefore, the balloon volume would increase as the number of moles of gas particles increases.