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- When people breath they breath out moisture. Most air that we breath has a certain amount of moisture in it unless you are in the desert or air conditioning.
- Dry air causes our noses to dry out and become uncomfortable.
- Water needs energy to evaporate and stay as a vapour.
- These vapour particles lose energy as they strike the cold glass.
- The vapour then condenses and turns back into liquid water.
- This is really noticeable when sitting in a car on a cold day. The small air volume in the car soon becomes quite moist from people's breath and condenses on the windows.
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∙ 14y ago
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Why does fog form when you exhale on a very cold day?
It has to do with the temperature and dew point on that particular day.
Is fog hot or cold?
cold
Why do eye glasses fog when entering a warm building on a cold day?
Upon entering the warm building, the warm air around your cold glasses condense to form miniscule water droplets that will cloud your vision.
The type of fog that results when moist air moves across a cold surface is?
Advection fog results when moist air moved across a cold surface. When moving across a cold surface, the air is cooled to its dew point.
Is fog dangerous?
well they are not really bad they are just not good when you have a cold
Why does a car window fog up on a cold morning?
The air on the inside of the car is warmer than the air outside.
Why do eyeglasses fog up when you come inside from the cold?
That is the reaction of the cold lens meeting with the heat from the inside.
Breathing on a cold window can fog it up which change of state causes this?
Condensation
Why do car windows fog up?
well it could be because of the heat. if its cold out and you have the heat on in the car, then you will get hot and that will cause the window to fog.
Why does windscreen fog up on a cold day?
condensation
Is condensation the change of a liquid into a gas?
No,its a gas to a liquid. Example:when its cold outside and you breathe on a window and fog appears you wipe the fog off the window and it will be wet just like a liquid hope that helped :) sinceraly,zahria
Why does fog form when you exhale on a very cold day?
It has to do with the temperature and dew point on that particular day.
Why does your breath forms a cloud on a cold day?
Your breath forms a cloud on a cold day because your breath is warmer than the air, so it creates fog.
Why doesn't the window fog up when you breathe on it on hot days?
It's because on a hot day, the window is not cold enough to condense the water in the breath that is breathed on it. The solubility of a liquid in a gas is temperature dependent, so the water in breath which is a gas mixture saturated with moisture precipitates out when it hits a cold pane of glass. Similarly when you open an oven the moisture from the food cooking lets a steam escape that will fog up your glasses.
Why do we make fog by breathing on the window in the winter?
Water vapor in your breath condenses as tiny droplets of liquid water on the cold glass surface.
Is fog hot or cold?
cold
Why does window fog even when warm air is blowing on them on car windshield?
Warm air contains more moisture than cold air. The air hits the cold window and the moisture is deposited on the cold glass. It is the same effect that causes your glass full of a cold beverage to start to drip down the sides.
