Question

How much gold already at its melting point would melt if 6000 Joules of thermal energy were used to heat it?

For gold the specific latent heat of fusion is 120 000 J/kg and the specific latent heat of vaporisation is 64 000 J/kg.

ASAP please the assignment is due tonight.

Answer 1

Step-by-step explanation:

To determine how much gold would melt when 6000 Joules of thermal energy is used to heat it, we need to consider the specific latent heat of fusion and the specific latent heat of vaporization for gold.

Since we are heating the gold to its melting point but not beyond, we only need to consider the specific latent heat of fusion.

The specific latent heat of fusion for gold is given as 120,000 J/kg, which means it takes 120,000 Joules of thermal energy to melt 1 kilogram of gold.

To find out how much gold would melt with 6000 Joules of thermal energy, we can use the following equation:

Amount of gold melted = Thermal energy / Specific latent heat of fusion

Amount of gold melted = 6000 J / 120,000 J/kg

Simplifying the equation:

Amount of gold melted = 1/20 kg

Therefore, with 6000 Joules of thermal energy, approximately 1/20 kg or 0.05 kg (50 grams) of gold would melt at its melting point.