# Whose solubility increases with increase in temperature?

Solubility of which among the following substances in water increases slightly with rise in temperature?

(a)$$\ce{KBr}$$

(b)$$\ce{KCl}$$

(c)$$\ce{KNO3}$$

(d)$$\ce{NaNO3}$$

$\ce{KBr}$ and $\ce{KCl}$ both roughly double their solubility from 0 to 100 degrees Celsius.