Question

How is the AHfusion used to calculate the mass of solid that 1kJ of energy will melt? O A. 1kJ * AHfusion A Hfusion x g/mol solid B. 1kJ x 1/ AHfusion * g/mol solid O C. 1kJ x 1/A Hfusion * mol/g solid D. 1kJ * AHfusion x mol/g solid​

Answer 1

Answer:

B. 1kJ x 1/ AHfusion * g/mol solid

Explanation:

Took test

Answer 2

Answer:  $\frac{1}{\Delta H_{fusion}}\times 1kJ\times xg/mol$

Explanation:

Latent heat of fusion is the amount of heat required to convert 1 mole of solid to liquid at atmospheric pressure.

If $\Delta H_{fusion}$ is used to melt = 1 mole of solid

1 kJ of energy is used to melt = $\frac{1}{\Delta H_{fusion}}\times 1kJ$

Now if molar mass of  solid is x g/mol

Then mass of solid will be = $\frac{1}{\Delta H_{fusion}}\times 1kJ\times xg/mol$