During the phase change from a liquid to a gas, the average distance between molecules always increases.
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.
As molecular motion increases, the spacing between molecules also increases. This is because the molecules move faster and spread out more, leading to a greater distance between them.
Ice is a solid made up of moleculs, H2O. Generally when a solid melts the distance between the molecules (or atoms if it is sya a metal) increases.Water is very unusual in that the solid form is lessdense than the liquid, which is why icebergs float. The reason is that solid water forms a hydrogen bonded lattice that is quite "open" and the mean distance between molecules is actually greater in the solid than in the liquid hence the lower density.
An increase in the number of molecules increases the frequency of molecular collisions with the container walls. With more collisions per unit time, the average force exerted by the molecules on the walls increases, resulting in an increase in pressure.
The distance between molecules in a solid is very small, typically in the range of a few angstroms (10^-10 meters). This distance is determined by the atomic or molecular structure of the solid material.
The average distance between oxygen molecules at Standard Temperature and Pressure (STP) is approximately 3.3 nanometers.
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.
expands because hydrogen bond operates the molecules and increase the average distance between molecules
When heated, most substances expand due to the increase in kinetic energy of their atoms or molecules. This leads to an increase in the average distance between the particles, causing the substance to expand.
As molecular motion increases, the spacing between molecules also increases. This is because the molecules move faster and spread out more, leading to a greater distance between them.
Ice is a solid made up of moleculs, H2O. Generally when a solid melts the distance between the molecules (or atoms if it is sya a metal) increases.Water is very unusual in that the solid form is lessdense than the liquid, which is why icebergs float. The reason is that solid water forms a hydrogen bonded lattice that is quite "open" and the mean distance between molecules is actually greater in the solid than in the liquid hence the lower density.
Increasing the temperature of a gas causes the molecules to move faster on average, which leads to an increase in their kinetic energy. This results in more frequent and higher energy collisions between the molecules.
The space of the atoms increase!
An increase in the number of molecules increases the frequency of molecular collisions with the container walls. With more collisions per unit time, the average force exerted by the molecules on the walls increases, resulting in an increase in pressure.
II. The distance between the molecules.
The distance between molecules in a solid is very small, typically in the range of a few angstroms (10^-10 meters). This distance is determined by the atomic or molecular structure of the solid material.
The space of the atoms increase!