How pH of ammonia changes after increase of temperature and why?

Question

What about other bases, acids?

Answer 1

Since ammonia (NH3) is a gas, and as the temperature increases, the solubility of the NH3 will decrease. This will lower the pH since the concentration of NH4OH will decrease as the temperature increases.

As far as other acids and/or bases are concerned, if a similar rationale may be used if the acid or basic solution is produced by dissolving a gas. For example, CO₂ (H₂CO₃).