Assume that we have a box of $1 m^3$$1\ \mathrm{m^3}$ with a constant wall temperature 15°Cof $15\ \mathrm{^\circ C}$. The box was filled with air. The temperature of the air was 30 °C$30\ \mathrm{^\circ C}$ and the relative humidity was 60%$60\ \%$. After cooling the temperature of the air is equal to the wall temperature.
How can I figure out how much a change in temperature affects the relative humidity? Sadly, we don't know the amount of $condensed $condensed water.
