How does volume and the number of particles influence the nature and behavior of gases?!? please explain each?

Question

Please explain individually... thank you!!! :D

please don't use formulas... just say how the number of particles and volume affect the nature and behavior of gases

Answer 1

It's PV=nRT (Ideal Gas Law).

The volume will influence the pressure, assuming that n and T stay constant. R is always the same, it's a constant.

The number of particles (or n) will influence the PV side of the equation.

Hope that helps :-)

Answer 2

Picture a gymnasium containing a perfect vacuum (absolutely no gas). Imagine that you have a moving van full of tennis balls (filled with helium?) that weigh almost nothing and are free to float nearly free of the earth's gravitational attraction. Let half the truckful of balls into the gymn. Because they are all at ambient (surrounding) temperature (at least on average) they all have energy and will travel at velocities depending only on their individual temperatures. The balls will all spread out completely filling the gymn top to bottom, etc. Soon the balls are all colliding with each other and the walls, floor and ceiling of the gymn. As the balls bounce off a wall they exert a pressure on the wall and the total pressure will depend on the number of bounced balls and velocity of the balls per second (or nanosecond). If the walls are hot, the balls will pick up more energy (from the molecules of the wall that are vibrating depending on their temperature). As more balls pick up energy and increase their velocity they increase their pressure on the wall. The balls are also colliding with each other and sharing temperature and velocity so the heating effect rapidly spreads. Now you add the second half of the van full of tennis balls. They will collide with the first batch of balls and the wall twice as often doubling the pressure. Because it took energy to force them into the gymn against the first load of balls (perhaps using a huge piston and engine) the added energy is soon shared with all the balls and their average temperature and velocity increases. But the energy can be lost to the walls, etc. Because there are now twice as many balls in the gymn as before, the density of the gas is also now twice what it was. The very same thing happens with a real gas except billions of gas particles are involved, collisions occur too fast to see and the gas is in fact invisable. Only the pressure, temperature and density can be sensed and measured. Hope that helps (with no formulas!). If you could find a glass tube with a cross-sectional area of one square inch that reached from the ground to a height at the edge of space, it would enclose a sample of the atmosphere that weighs 14.7 psi (pounds per square inch) which is standard atmospheric pressure at sea level. Even gas is attracted by the earth's gravity.

Answer 3

volume and # = density, density influences temp and other physical characteristics