FYKOS Year 32 Series 2 Problem 2 — Finnish sauna · FYKOS 32 #32.2.2

Physics · thermodynamics

Problem

Imagine that Dan has a sauna with dimensions

2,5 \mathrm{m}

3 \mathrm{m}

4 \mathrm{m}

with a relative humidity of

20 \mathrm{\%}

and temperature of

90 \mathrm{\C }

. How much water would have to evaporate, so the relative humidity inside the sauna is

35 \mathrm{\%}

? The water evaporates inside the sauna without changing the overall temperature.