What will be the melting point of KCl if enthalpy change for the reaction is 7.25 J mol-1 and entropy change is 0.007 J K-1 mol-1 ?

Question

What will be the melting point of KCl if enthalpy change for the reaction is 7.25 J mol-1 and entropy change is 0.007 J K-1 mol-1 ? (A) 1835.2 K (B) 173 K (C) 1035.7 K (D) 1285.2 K

Tardigrade Admin · Accepted Answer

T = (Δ H/Δ S) = (7.25/0.007) = 1035.7 K

Q. What will be the melting point of $K Cl$ if enthalpy change for the reaction is $7.25 J m o l^{- 1}$ and entropy change is $0.007 J K^{- 1} m o l^{- 1}$ ?

$1835.2 K$

$173 K$

$1035.7 K$

$1285.2 K$

$T = \frac{Δ H}{Δ S} = \frac{7.25}{0.007}$
$= 1035.7 K$

Q. What will be the melting point of KCl if enthalpy change for the reaction is 7.25Jmol−1 and entropy change is 0.007JK−1mol−1 ?

1835.2K

173K

1035.7K

1285.2K