# What would cause molecules of gas to get closer together?

## What would cause molecules of gas to get closer together?

The gas molecules are moving and are a certain distance apart from one another. An increase in pressure pushes the molecules closer together, reducing the volume. If the pressure is decreased, the gases are free to move about in a larger volume.

## Which molecules are come closer by applying pressure?

On applying pressure, gas molecules come closer and decrease the volume of a gas. Compressibility is the measure of how much a given volume of matter decreases when placed under pressure. Gases are compressible because most of the volume of a gas is composed of large amounts of empty space between the gas particles.

What is happening to the particles as the pressure increases?

With more particles there will be more collisions and so a greater pressure. The number of particles is proportional to pressure, if the volume of the container and the temperature remain constant.

Why does pressure decrease when a pipe narrows?

Assuming constant temperature (think energy), if the kinetic energy in one direction (along the pipe) has increased, then the kinetic energy of random motion (think pressure) has to have decreased.

### What has a definite size but no shape?

A solid has definite volume and shape, a liquid has a definite volume but no definite shape, and a gas has neither a definite volume nor shape.

### What do you think will happen if substances does not follow kinetic molecular theory?

These conditions will decrease the both the frequency of molecule-wall collisions and the number of collisions per unit area, the combined effects of which balance the effect of increased collision forces due to the greater kinetic energy at the higher temperature.

What is the force of attraction in liquid?

Force of attraction is medium in liquids, their particles are packed quite loosely, their are some intermolecular spaces just because of somewhat weak forces of attraction, that’s why liquids can flow. Force of attraction is minimum in gases, their particles are packed loosely and they can move here and there.

What eventually happens to a gas if the pressure is increased?

Boyle found that when the pressure of gas at a constant temperature is increased, the volume of the gas decreases. this relationship between pressure and volume is called Boyle’s law. So, at constant temperature, the answer to your answer is: the volume decreases in the same ratio as the ratio of pressure increases.

#### Why does pressure decrease with temperature?

If you heat a gas you give the molecules more energy so they move faster. This means more impacts on the walls of the container and an increase in the pressure. Conversely if you cool the molecules down they will slow and the pressure will be decreased.

#### Does pressure increase in a narrow pipe?

The more tightly you squeeze your thumb, the more you’ll see reduced flow and feel greater pressure. A smaller pipe would lessen the flow of water as well as reduce the pressure loss in the pipes. This in turn would cause more pressure but render a sprinkler system inoperative.

Does pressure increase with smaller diameter pipe?

In water flowing pipeline, pipe size and water pressure are dependent on each other. Because if the diameter of a pipe decreased, then the pressure in the pipeline will increase. As per Bernoulli’s theorem, pressure can be reduced when the area of conveyance is reduced.

When are two pipes with two slightly different pressures merge?

The one pipe is has a flow rate of 450 CFM at 14 psi, the other pipe has a flow rate of 600 CFM at 16 psi. These two pipes are each 12″ diameter merging into a single 16″ diameter pipe.

## What happens to a material when the pressure increases?

You didn’t mention temperature, in your question. The compressive pressure inside a material can increase with temperature, if the material is constrained in some way. This increase in pressure can also cause the material to expand, if it can do so, against its constraints.

## Which is a direct consequence of air pressure differences?

Wind is a direct consequence of air pressure differences. The greater the pressure contrast over an area, the shorter the distance between isobars on a weather map depicting the area. Wind blows from areas of high to low pressure.

How does pressure affect the rate of a reaction?

If the concentration of a reacting solution or the pressure of a reacting gas is increased: the reactant particles are closer together the frequency of collisions between reactant particles increases therefore the rate of reaction increases