How come a cigarette's smell is more dominant when smoking on a cold day ?

Answer 1

You see, the air molecules has less energy to move on a cold day and moves slower. The cigarette smoke thus travels slower as the smoke particles bumps into the air molecule.

In compassion to a hot day when the air molecules moves faster at all direction, on a hot day, the smoke would defenitely travel faster to your nose.

But if you are saying about the smell of the smoke, then the smell would be stronger on a cold day as the particles are gathered more closer and are of a higher concentration then the hot day where the particles fly everywhere.

Hope that helped you understand it.

Answer 2

Because cold contracts and heat expands. When you walk outside and light up, the heat from the smoke will automatically open up the smell sensors in your nos or that of others. On warm days the heat from the smoke is actually cooler or the same temperature and has a negligible effect.

Answer 3

I'm no scientist, but this is what I think

When it's cold out the air is thinner and there is less humidity (generally) So it's not that the smell is stronger, but that it gets to your nose faster and more abundently.

Answer 4

Yes! I also notice you can't smell it as much in a humid climate.