Plasma.
Ammonia is less dense than air at room temperature and pressure. This is why ammonia gas rises in air.
b. Warm air is as dense as cooler air. Temperature has a direct impact on air density, with warmer air being less dense than cooler air at the same pressure.
It is a physical property. Any gas that has a lower density than air will float above air. This is similar to how if you pour oil into water. The oil will float on the water because it is less dense.
If it were, it would float in air. Does it float in air? There's your answer.
It is more dense.
Air, oil, ice. One of the few substances that its solid form is less dense
Ice Air is less dense than water, so water sinks below air. A rock is more dense than water, so it sinks in water and air. And helium, which is less dense than air, rises in air and in water.
Ammonia is less dense than air at room temperature and pressure. This is why ammonia gas rises in air.
Warm air is less dense (lighter) than cold air..that is why warm air rises and cold air settles
If a balloon is filled with a substance that's less dense than air ... such as helium, hydrogen, steam, or warmer air ... then the balloon is less dense than air.
The air inside a balloon is less dense than the air around it. When the balloon is inflated, it contains less air molecules compared to the same volume of air outside the balloon, making it less dense.
No it is more dense than hot air
b. Warm air is as dense as cooler air. Temperature has a direct impact on air density, with warmer air being less dense than cooler air at the same pressure.
Helium and neon are less dense than air; argon, krypton, xenon and radon are denser than air.
Warm air is less dense then cold air. But moist air is actually less dense than dry air because water vapor has a lower molecular weight than the oxygen and nitrogen that make up most of the atmosphere.
Most substances do not float in air because air has a lower density than most solids and liquids. This means that most substances are denser than air, causing them to sink rather than float. Floating in air typically requires a substance to be less dense than the surrounding air, like helium or hydrogen gases.
Hot air balloons heat up contained air so that the density of it becomes significantly less than the outside air and thus the container (balloon) will rise of float in the surrounding air until the density difference is null. Buoyancy is just that, less dense substances floating or rising in more dense substances. The other approach is saying more dense substances sink in less dense substance.