A block of ice at is placed in an insulated container

CHEMISTRY · Single correct · A Level · Chemistry · Energetics · Energetics

Problem

50.0\,\text{g}

block of ice at

0\,^\circ\text{C}

is placed in an insulated container, and

9.00\,\text{kJ}

of heat is supplied. The molar enthalpy of fusion of ice is

6.02\,\text{kJ}\,\text{mol}^{-1}

, and no temperature change occurs until all the ice has melted. Approximately how many grams of the ice remain solid after the heat is added? (a)

38\,\text{g}

(b)

23\,\text{g}

(c)

27\,\text{g}

(d)

49\,\text{g}