I was posting about thermodynamics in a previous post and was wondering
why doesn't condensation & evaportation occur at the same temperature
treshold (or does it)??

I guess you don't get evaporation(or sufficient evaportation)) until
the water is boiled? And I don't remember so lets say at 40 deg Celcius
there's sufficient evaporation but you don't get nescesarily get
condensation at 30 deg Celcius (since it's below 40C) ???

Example:

You can get very very cold air in winter and that air which is say
-20deg Celcius has not condensed into water, why not since it's wayyyy
below the evaporation temperature (strange behavior for
thermodynamics...no?)???

I don't remember my chemistry well but I think evaporation produces H2
and O2 and condenstion produces H2O ?

wrote:
I was posting about thermodynamics in a previous post and was wondering
why doesn't condensation & evaportation occur at the same temperature
treshold (or does it)??

I guess you don't get evaporation(or sufficient evaportation)) until
the water is boiled? And I don't remember so lets say at 40 deg Celcius
there's sufficient evaporation but you don't get nescesarily get
condensation at 30 deg Celcius (since it's below 40C) ???

Example:

You can get very very cold air in winter and that air which is say
-20deg Celcius has not condensed into water, why not since it's wayyyy

air dont condens into water

water vapors in air do, so you need tha
air havin humidity, 100% humidity condens
very nice, you need also lower pressure

more than one atm increase the boiling temp,
and viceversa, so lower pressure gives easyer
condensaTION

below the evaporation temperature (strange behavior for
thermodynamics...no?)???

evaporation takes place all tha time


I don't remember my chemistry well but I think evaporation produces H2
and O2 and condenstion produces H2O ?

no, evaporation produce nothen but vaporize tha air, so
still h2o in air

wrote:
thoracus wrote:
wrote:
I was posting about thermodynamics in a previous post and was wondering
why doesn't condensation & evaportation occur at the same temperature
treshold (or does it)??

I guess you don't get evaporation(or sufficient evaportation)) until
the water is boiled? And I don't remember so lets say at 40 deg Celcius
there's sufficient evaporation but you don't get nescesarily get
condensation at 30 deg Celcius (since it's below 40C) ???

Example:

You can get very very cold air in winter and that air which is say
-20deg Celcius has not condensed into water, why not since it's wayyyy

air dont condens into water

water vapors in air do, so you need tha
air havin humidity, 100% humidity condens
very nice, you need also lower pressure

more than one atm increase the boiling temp,
and viceversa, so lower pressure gives easyer
condensaTION

below the evaporation temperature (strange behavior for
thermodynamics...no?)???

evaporation takes place all tha time


I don't remember my chemistry well but I think evaporation produces H2
and O2 and condenstion produces H2O ?

no, evaporation produce nothen but vaporize tha air, so
still h2o in air

I thought extra energy(heat) permits the formation of new molecules in
chemistry?

2xH2O + E = 2xH2 + O2.....or something like that?

Are you saying there no such thing as pure Hydrogen in the air and O2
(oxygen) and through a special circumstance turn into H2O??

what is tha composition of air?

ca 21% and tha rest is primary natrium,
a litle co2 etc, not much h2

you are confusin evaporation and water electrolyse

21% oxigen