Question

What happens in winter

when it is very cold
and you breath out against
ta cold windowpane? Why
does this happene?

Answer 1

Cold air cannot hold as much moisture as warm air. So when one exhales a warm, saturated breath on a cold day the cold air rapidly lowers the temperature of our breath, whereupon the combination briefly reaches dew point.

Answer 2

Cold air cannot hold as much moisture as warm air. So when one exhales a warm, saturated breath on a cold day the cold air rapidly lowers the temperature of our breath, whereupon the combination briefly reaches dew point