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If they are both under the same pressure and are the same in volume, then, yes, warm air has fewer molecules

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What is true A warm air is less dense than cool air B warm air is as dense as cool air. C warm air has no density. D warm air is denser than cool air?

A warm air is less dense than cool air (Option A). When air is heated, the air molecules become more energetic and spread out, decreasing its density. Conversely, cool air has denser molecules as they move slower and are more tightly packed together.


Why does warm air rise and cool air sink?

The warmer the air is the more energy the molecules have. The more energy the molecules have the more they vibrate. When the molecules vibrate they bounce into each other and push apart from each other, hence the warmer air is; the less dense it is (number of molecules per unit volume). So, colder air has less energy which means more molecules can fit into one space (because they are not bouncing off each other).Read more: Why_doesn't_cold_air_rise


Why does warm air weigh less than cool air?

Cold air falls and warm air rises. Warmer air rises above cooler air because it is less dense. The particles vibrate and move further apart so the molecules that compose the air are more spread out, causing the warm air mass to weigh less than the cool air.ass


What makes the tendency for warm air to raise and cool air to sink?

Warm air is less dense than cool air because its molecules are moving faster and spread further apart. This reduced density causes warm air to rise, as it is lighter than the denser, cooler air around it. Conversely, cool air sinks because it is denser and heavier than the surrounding warm air.


Is warm air dense?

No, warm air is less dense than cold air because the molecules in warm air have more energy and are spread out more, resulting in lower density.


Why is cool air heaver than warm air?

because it is denser &/or the molecules are closer together


Why is warm air less dense than cool air?

Sooo many fingers


Is cool air lighter than an equal volume of warm air?

Yes, the cool air is lighter than the warm air and that is why Ac's are at the top or high level of the room so in this way when the AC gives out cool air it travels down and the warm air travels upwards and the whole room gets cool quickly.


Warm air and cold air have densities?

Yes! Warm air is less dense, which is why warm air rises. Cold air is more dense so that's why it sinks.


What is less dense warm air or cold air?

Warm air is less dense (lighter) than cold air..that is why warm air rises and cold air settles


Is Warm air is less dense than cold air?

Yes, warm air is less dense than cold air because as air is heated, the molecules gain energy and move farther apart, resulting in lower density. Conversely, cold air is denser because the molecules are closer together due to lower energy levels.


Why does warm air usually rise in the cool air that surrounds it?

the warm air's particles are more spread out so they rise up and have the face filled by the molecules in the cold air which are closer together. also warm air's molecules move faster than cold air