An increase in pressure
Increasing the volume of a gas the pressure and density decreases.
Density
The number of acetone molecules is 24,843.10e23.
In a closed system the pressure increase. In other conditions the volume increase and the density decrease.
The kinetic energy will increase
Increasing the volume of a gas the pressure and density decreases.
Increasing the volume of a gas the pressure and density decreases.
Increasing the temperature of gas the volume increase.
A decrease of pressure.
At constant volume the pressure increase.
No, it will not.
Density
If the volume is constant, the density does not change with temperature. With increasing temperature there is still the same number of molecules confined to the same volume of space, so no difference in density.
Heat, number of molecules, atmospheric pressure and volume Volume * Pressure = molecules * molar gas constant * Heat
The number of acetone molecules is 24,843.10e23.
It's because the salt disolves into the water instead of adding more volume to it. The salt molecules are "taken apart" (dissociated) by the water molecules, and they are converted into Na+ and Cl- ions. These ions can fit "between" the water molecules, and can do so without increasing the volume of the solution. More salt can be added without increasing the volume, too. That is until saturation is reached, and then no more salt will go into solution. Adding additional salt beyond this point will increase the volume.
The compression will result in a lowering in the average distance between molecules of the gas. Imagine that the cylinder is like that in an internal combustion engine, with a piston inside the cylinder. The compression is accomplished by pressing the gas into a reduced volume. The number of gas molecules remains the same. With the same number of molecules in a reduced volume, the gas molecules are pressed more closely together, lowering the average distance between the gas molecules.