0
Density is a measure of the amount (as a mass) of something for a given volume (liters).
So, for example, there may be 1 billion atoms in 1 liter of air. If this volume of air expands, then the individual atoms will become further apart, and you will therefore have fewer atoms in the 1 liter of air, and there fore it will be less dense.
What else can I help you with?
Is compressed air less dense than expanded air?
Compressed air is MORE dense than expanded air. Density is the measure of an objects mass (measured in grams, kilograms, pounds etc) divided by its volume (cubic centimetres, litres, cubic feet, cubic yards etc). D= m/V Decreasing the volume of an object, or in this case a fixed amount of air, increases the density because the mass does not change but the volume gets smaller. Increasing the volume (expanded air) causes the density to decrease.
When will the density of the balloon decrease?
The density of a balloon will decrease when the amount of air inside it decreases, causing it to become less dense compared to its surrounding environment. This decrease in density may happen if air leaks out of the balloon or if the balloon is subjected to a higher altitude where the air pressure is lower.
A decrease in density as air is heated causes it to rise above coolermore dense air. truefalse?
True. As air is heated, it becomes less dense and rises above cooler, more dense air. This is due to the decrease in air density causing it to become buoyant and rise.
When the air in a balloon is heated what happens to the density?
When the air inside a balloon is heated, its density decreases. This happens because the air molecules gain energy and move farther apart, resulting in a decrease in the air's density.
Does the air in a hot air balloon increase or decrease its density?
The air in a hot air balloon decreases in density when it is heated. As the air inside the balloon is heated, it expands and becomes less dense compared to the surrounding air, creating lift.
What happens when a gas is expanded?
A consequence is the decrease of density.
Is compressed air less dense than expanded air?
Compressed air is MORE dense than expanded air. Density is the measure of an objects mass (measured in grams, kilograms, pounds etc) divided by its volume (cubic centimetres, litres, cubic feet, cubic yards etc). D= m/V Decreasing the volume of an object, or in this case a fixed amount of air, increases the density because the mass does not change but the volume gets smaller. Increasing the volume (expanded air) causes the density to decrease.
How do you decrease the density of air?
Keep it dry.
When the air rises does it increase or decrease?
When air rises, it expands and cools, which causes its density to decrease. Conversely, when air descends, it compresses and warms, which causes its density to increase.
When will the density of the balloon decrease?
The density of a balloon will decrease when the amount of air inside it decreases, causing it to become less dense compared to its surrounding environment. This decrease in density may happen if air leaks out of the balloon or if the balloon is subjected to a higher altitude where the air pressure is lower.
Why does density of air decrease with increase in height?
The density of air decreases with an increase in height due to the decrease in pressure and temperature with altitude. As you go higher in the atmosphere, there are fewer air molecules present, leading to lower air density.
How does the density of air increase or decrease?
By Removing or addng heat
When altitude increases does air density?
Decrease. As altitude increases, the air density decreases because the air molecules are more spread out, resulting in lower pressure and less mass per unit volume. This leads to thinner air at higher altitudes.
As a parcel of air increases in altitude its pressure will?
No, the density lowers. When air expands, the volume of area it takes up increases while the density decreases. The molecules move apart.
What effect does air density have on the absorption and radiation of energy?
An increase in air density will mean a decrease in the absorption and radiation of energy. An increase of air density causes temperature and pressure to rise.
Where is air density is greatest?
At the bottom of the troposphere
What gets heavier when warm?
Air becomes heavier when it is warm because the heat causes the air molecules to move faster and spread out, decreasing the air density. This decrease in density leads to a decrease in air pressure, making it feel "heavier" compared to cooler, denser air.
