emily8094944 emily8094944

14-11-2020
Chemistry

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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)

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quasarJose quasarJose

15-11-2020

Answer:

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

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