What quantity of energy is released from 506 g of liquid water freezes

Given:

Mass of water = 506 g

To determine:

The amount of energy released when 506 g of water freezes

Explanation:

The process involves a phase change from liquid water to solid

Liquid water ↔ Solid water/ice

Now, the molar enthalpy of fusion of water i. e. the energy released when water freezes is 334 J/g

Thus, the energy released corresponding to 506 g of water is-

= 506 g * 334 J/1 g = 169,004 J

Ans: Energy released = 169 kJ