my house is cold!
2007-01-15 03:22:45 · 9 answers · asked by Kevin P 1 in Science & Mathematics ➔ Other - Science
about 15ºC
At that temperature the "smoke"(you say) is visible allright which is merely condensed water vapour.
Go below that temp. and you will literally get lots of "smoke"
The lower the temperature the water vapour from our mouth condenses more rapidly to give the "smoke" like appearance.
And about humidity.....air below temperature of 15ºC is generally dry! so it does not matter much!
2007-01-15 03:27:18 · answer #1 · answered by Som™ 6 · 0⤊ 0⤋
As those who have posted before me- it's not "smoke" but vaporized moisure in the air.
There is not one specific temperature. It is the vaporization that will occur when the warm, moist air from your lungs, mixes with the cold air outside. Since cold air cannot hold as much moisture as warm air, it vaporizes (i.e. turns to tiny little water droplets- like in clouds or fog) It helps to have cooler air that's fairly close to the point of vaporization (near 100% relative humidity) to start with. If the air is very cold, but very dry- then while it will vaporize, it will also evaporate very quickly afterwards- so you won't get much uh... 'smoke'.
Conditions are very favorable for 'smoke' when it's as warm as the upper 40's and low 50's Farenheit, and moist out. But- it can happen at nearly any temperature below about 70F
2007-01-15 11:44:00 · answer #2 · answered by Morey000 7 · 0⤊ 0⤋
1 breath does not turn to smoke it turns to sream due to the fact that it is warmer than the air the point at which this happens is approx 32 F
2007-01-15 11:32:02 · answer #3 · answered by lvlichaels 3 · 1⤊ 1⤋
Below dew point. The dew point depends on the concentration of water vapor in the local air.
Th
2007-01-15 11:54:34 · answer #4 · answered by Thermo 6 · 0⤊ 0⤋
Breath can never become smoke. Smoke comes from burning objects.
2007-01-15 11:29:13 · answer #5 · answered by darth_maul_8065 5 · 1⤊ 1⤋
anecdotal evidence of mine says about 55 f, which is close to the 15 degrees c that another answerer posted.
2007-01-15 11:34:08 · answer #6 · answered by abcdefghijk 4 · 0⤊ 0⤋
Almost 0°!
2007-01-15 11:30:28 · answer #7 · answered by Lil' Gay Monster 7 · 0⤊ 1⤋
mid 30s,around the freezing point
2007-01-15 11:30:34 · answer #8 · answered by Anonymous · 0⤊ 1⤋
vapor you speak of... I bet the temp is just one factor. the humidity already in the air plays a part I bet....
2007-01-15 11:37:46 · answer #9 · answered by michael f 2 · 2⤊ 1⤋