Question

the combustion of naphthalene (C10H8), which releases 5150.1 kJ/mol, is often used. A sample of naphthalene of mass 1.05-g is burned in a calorimeter, producing a temperature increase of 3.86°C. Combustion of a 1.83-g sample of coal in the same calorimeter causes a temperature change of 4.90°C. What is the energy density of coal?​

Answer 1

Explanation:

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