I need the answer for info!
2007-09-18 09:33:15 · 2 answers · asked by danielledear 1 in Science & Mathematics ➔ Earth Sciences & Geology
The Ideal Gas Law explains this best. PV=nRT, where P is pressure in torrs (I think), V is volume in liters, n is the amount of material in moles, R is the Gas Constant and T is the temperature in Kelvin. Algebraic rearrangement of this formula gives V=nRT/P. Since R is constant and, assuming no change in n, changes in temperature and/or pressure change the volume of a gas.
2007-09-18 13:30:43 · answer #1 · answered by Amphibolite 7 · 0⤊ 0⤋
A gas will expand to fill the volume of its container, so the way to change the volume of a gas is to change the volume of the container.
That being said, a gas will increase in pressure when heated, and that increased pressure may cause the container's volume to increase (if the container has the freedom to change volume, such as a balloon or a cylinder with a movable head), so one might say that heating or cooling the gase indirectly changes its volume.
2007-09-18 16:41:57 · answer #2 · answered by dansinger61 6 · 0⤊ 0⤋