Gunpowder's burning rate increases with pressure, so it will burst containers but just burns in the open. Ignition of the powder packed behind a bullet must generate enough pressure to force it from the muzzle at high speed, but not enough to rupture the gun barrel.
The gas constant occurs in the ideal gas law, as follows: where P is the absolute pressure (SI unit pascals), V is the volume of gas (SI unit cubic metres), n is the amount of gas (SI unit moles), m is the mass (SI unit kilograms) contained in V, and T is the thermodynamic temperature (SI unit kelvins).
The formula for the Ideal Gas Law is PV=nRT. Therefore, V=nRT/P. If T and P are constant and only the moles change V is entirely dependent on n. Since n is in the numerator of â¦ the equation, that means as the number of moles increase, the volume will increase too. This means V is directly proportional to n.