6. Water vapor diffusion

6.1 Fick's Law

We now consider a wall separating two environments whose temperatures T ₁ and T ₂ are equal (T ₁ ≥ T ₂ ), but whose relative humidities HR ₁ and HR ₂ are different, with HR ₁ > HR ₂ .

To each relative humidity of the air, HR ₁ and HR ₂ , corresponds a partial pressure P _...