question_answer

19 g of water at \[30{}^\circ C\] and 5 g of ice at \[-\,20{}^\circ C\]are mixed together in a calorimeter. What is the final temperature of the mixture? Given specific heat of ice \[=0.5 cal {{g}^{-1}} {{\left( {}^\circ C \right)}^{-1}}\]and latent heat of fusion of ice\[=80cal\,\,{{g}^{-1}}\]

A) \[0{}^\circ C\]

B) \[-5{}^\circ C\]

C) \[5{}^\circ C\]

D) \[10{}^\circ C\]