How much heat energy is required to melt 25.0 g of Aluminum at its melting point, 658°C? (The Hf of Al is 94.4 joules/gram)

2360J

Explanation:

Given parameters:

Mass of aluminum  = 25g

Melting point  = 658°C

Latent heat of melting  = 94.4j/g

Unknown:

Amount of heat require for melting = ?

Solution:

The amount of heat required for this melting will be the product of the mass of the aluminum and the latent heat of melting;

  H = m L

m is the mass

L is the latent heat of melting

  Insert the parameters and solve;

 H = 25 x 94.4 = 2360J