Question

Calculate the heat energy released when 14.9 g of liquid mercury at 25.00 °C is converted to solid mercury at its melting point.

Answer 1

so you need the specific heat capacity of liquid Hg and the heat of fusion

do it in two steps, 1 account for the temperature drop, 2. for the latent heat.
1. \(q=m*C_p*\Delta T\)
2. \(q=H_{fusion}*m\)