2006-10-23 15:31:08 · 4 answers · asked by papasmurf 1 in Science & Mathematics ➔ Earth Sciences & Geology
PV=nRT
V=nRT/P
Volume (V) can change if the amount of material (n) changes, or if the temperature (T) changes, or if the pressure (P) changes.
2006-10-24 05:53:10 · answer #1 · answered by Amphibolite 7 · 2⤊ 1⤋
Temperature expands gases, as it rises, it also decreases volume as temperature falls. Pressure, can also affect the volume of a gas in extreme ways.
Temperature and pressure affect the electrons swirling around a gas molecule's nucleus. Heat excites the atom, and the electrons orbit at greater distances from the nucleus, and the gas expands. Cold and pressure, drive the electrons closer to the nucleus until a liquid is formed. When pressure and cold are increased further, a gas can become a solid.
Dry ice is nothing more than frozen CO2!
2006-10-23 16:13:04 · answer #2 · answered by Anonymous · 1⤊ 0⤋
Because a gas, unlike a liquid, can be compressed or expanded without changing its phase. And, it naturally expands to fill all available space uniformly. Therefore the volume of any mass of a gas is simply the volume of the space in which it is contained.
2006-10-23 15:46:51 · answer #3 · answered by PaulCyp 7 · 1⤊ 0⤋
Heating and cooling causes liquids to expand & contract so volume changes accordingly.
2006-10-23 15:39:37 · answer #4 · answered by kate 7 · 0⤊ 0⤋