"At constant pressure, the volume of a fixed amount of gas is directly proportional to its absolute temperature." This is -

1. Charles
2. Ideal gas law
3. Gay-lussac’s law
4. Combined gas law

Type the correct answer in the box. express your answer to three significant figures. an empty water bottle is full of air at 15°c and standard pressure. the volume of the bottle is 0.500 liter. how many moles of air are in the bottle? the water bottle contains mole of air.