For gases the terms solute and solvent are not recommended.
Solute: mothballs Solvent: air Keyword: Mothballs in air
The solvent may be the air and the solute is water.
Imagine inhaling to blow in a balloon. You will take in air, hold it in your mouth and blow it into the balloon. Some of it will be the carbon dioxide you were exhaling but most of it will be the air you just breathed in. So, the gas inside the balloon will be a mixture, that is, air.
Hydrogen atoms are less dense than the air, therefore hydrogen balloon rises in air.
For gases the terms solute and solvent are not recommended.
If there is warm air in the balloon, cooler air makes the balloon rise and if there is cold air in the balloon warmer air makes the balloon fall.
Air= air in balloon solid= balloon and basket
Solute is perfume and solvent is air
D: The hot air inside the balloon becomes less dense than the air outside the balloon.
The air inside a hot air balloon is the same as normal air around the balloon and the air you're breathing, only heated by the flame inside the balloon, hence HOT AIR balloon.
when you fill a balloon with air the air makes pressure. the air pressure maximizes the balloon fabric allowing the balloon to expand.
Solute: mothballs Solvent: air Keyword: Mothballs in air
air is heavier than balloon, air rises
with out the hot air the balloon would not rise
The air in the balloon will cool , and the balloon will start to decend.
Because the fire or heating device heats the air in the top section ( the actual balloon ) and hot air rises... so the hot air trapped in the balloon makes the balloon rise :)