Final answer:
At room temperature, the distance between particles in an enclosed gas is about 10 times the diameter of the gas molecules themselves. This is due to the compressibility of gases and the large amounts of empty space between the particles.
Step-by-step explanation:
At room temperature, the distance between particles in an enclosed gas is about 10 times the diameter of the gas molecules themselves. This can be explained by the kinetic-molecular theory, which states that gases are highly compressible and mostly composed of empty space between the particles. When a gas is compressed, the particles are forced closer together.