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type the correct answer in the box. express your answer to three significant figures. agoldsmith melts 12.4 grams of gold to make a

Question

Type the correct answer in the box. Express your answer to three significant figures. Agoldsmith melts 12.4 grams of gold to make a ring. The temperature of the gold rises from 26^circ C to 1064^circ C, and then the gold melts completely. If gold's specific heat is 0.1291joules/gram degree Celsius and its heat of fusion is 63.5 joules/gram, how much energy is gained by the gold? The gold gains a total of square joules of energy.

Answer

4.4 (225 Votes)
Verificación de expertos
Rosalind Master · Tutor for 5 years

Answer

### The gold gains a total of 2447 joules of energy.

Explanation

## Step 1: Calculate the energy required to raise the temperature of gold to its melting point### Use the formula , where is the mass, is the specific heat, and is the change in temperature. ## Step 2: Calculate the energy required to melt the gold### Use the formula , where is the mass and is the heat of fusion. ## Step 3: Sum the energies to find the total energy gained### Add the energy required to raise the temperature and the energy required to melt the gold.