Question

The molar enthalpy of fusion for water is 6.008 kJ/mol. How much energy is released when 4.81 mol of water freezes?

Answer 1

Answer: The energy released when 4.81 mol of water freezes is 28.9kJ

Explanation:

Latent heat of fusion is the amount of heat required to convert 1 mole of solid to liquid at atmospheric pressure or energy released when 1 mole of liquid freezes to solid at atmospheric pressure.

$\Delta H_{fusion}$ = enthalpy change for fusion = 6.008 KJ/mole

Energy released when 1 mole of water freezes = 6.008 kJ

Energy released when 4.81 moles of water freezes = $\frac{6.008 kJ}{1}\times 4.81mol=28.9kJ$

Therefore, the energy released when 4.81 mol of water freezes is 28.9kJ