Which among the following salts, solubility decreases with increase in temperature ?

Question

Which among the following salts, solubility decreases with increase in temperature ? (A) Na2SO4 (B) NaBr (C) NaCl (D) KCl

Tardigrade Admin · Accepted Answer

For Na 2 SO 4 salt, solubility decreases with increase in temperature because reaction of Na 2 SO 4 with water is an exothermic reaction, i.e. Δ text sol H < 0. As a result solubility decreases. For NaBr , NaCl and KCl, the dissolution process is endothermic.

Q. Which among the following salts, solubility decreases with increase in temperature ?

$N a_{2} S O_{4}$

$N a B r$

$N a Cl$

$K Cl$

For $N a_{2} S O_{4}$ salt, solubility decreases with increase in temperature because reaction of $N a_{2} S O_{4}$ with water is an exothermic reaction, i.e. $Δ_{sol} H < 0$ . As a result solubility decreases. For $N a B r, N a Cl$ and $K Cl$ , the dissolution process is endothermic.

Q. Which among the following salts, solubility decreases with increase in temperature ?

Na2​SO4​

NaBr

NaCl

KCl

For Na2​SO4​ salt, solubility decreases with increase in temperature because reaction of Na2​SO4​ with water is an exothermic reaction, i.e. Δsol​H<0. As a result solubility decreases. For NaBr,NaCl and KCl, the dissolution process is endothermic.

$N a_{2} S O_{4}$

$N a B r$

$N a Cl$

$K Cl$

For $N a_{2} S O_{4}$ salt, solubility decreases with increase in temperature because reaction of $N a_{2} S O_{4}$ with water is an exothermic reaction, i.e. $Δ_{sol} H < 0$ . As a result solubility decreases. For $N a B r, N a Cl$ and $K Cl$ , the dissolution process is endothermic.