question_answer

The enthalpy change on freezing of 1 mol of  water at \[5{}^\circ C\] to ice at \[-5{}^\circ C\] is : (Given \[{{\Delta }_{fus}}H=6kJ\,mo{{l}^{-1}}\]at \[0{}^\circ C\], \[{{C}_{p}}({{H}_{2}}O,\ell )=75.3J\,mo{{l}^{-1}}{{K}^{-1}},\] \[{{C}_{p}}({{H}_{2}}O,s)=36.8J\,mo{{l}^{-1}}{{K}^{-1}})\]                             [JEE Online 08-04-2017]

A) \[6.00\,\text{kJ}\,mo{{l}^{-1}}\]                               

B) \[5.81\,\text{kJ}\,mo{{l}^{-1}}\]

C) \[5.44\,\text{kJ}\,mo{{l}^{-1}}\]                               

D) \[6.56\,\text{kJ}\,mo{{l}^{-1}}\]