A mixture of KCl and KF is added to sodium ch | vedclass

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Question

(B) Sodium chloride melts at a very high temperature of about $1085 \, K$. To lower this,a mixture containing sodium chloride,potassium chloride,and p

Vedclass · Accepted Answer

To decrease the melting point of $NaCl$

Vedclass · Answer

(B) Sodium chloride melts at a very high temperature of about $1085 \, K$. To lower this,a mixture containing sodium chloride,potassium chloride,and potassium fluoride $(NaCl + KCl + KF)$ is used. This mixture melts at a lower temperature of about $850-875 \, K$. Therefore,$KCl$ and $KF$ are added to $NaCl$ primarily to decrease the melting point of $NaCl$.

$A$ mixture of $KCl$ and $KF$ is added to sodium chloride.

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