# Question #2c99c

Jan 9, 2015

This can be best explained by the following graph. It's in Dutch, but the horizontal axis reads temperature (in degree Celsius), and the vertical axis gives the maximum amount of water vapour (in grams per cubic meter of air)

Remember: cooling is moving horizontally to the left, until you hit the graph. That's were condensation ('dewing') begins. Normally you never get to the left of the graph.

The maximum is thus: $\frac{17}{57} \cdot 100 \approx 30$g/m3