If 200 kg of n-heptane is completely combusted, how much heat is produced?

To determine the heat produced from the complete combustion of 200 kg of n-heptane, we need to know the heat of combustion for n-heptane and then use it to calculate the total energy released.

The heat of combustion for n-heptane (C7H16) is approximately -48,000 kJ/mol. This means that for every mole of n-heptane that is combusted, 48,000 kJ of energy is released.

First, we need to convert the mass of n-heptane into moles. The molar mass of n-heptane, calculated from its molecular formula, is around 100.2 g/mol. Therefore, we can convert 200 kg (or 200,000 grams) into moles:

[ \text{Moles of n-heptane} = \frac{\text{mass (g)}}{\text{molar mass (g/mol)}} = \frac{200,000 \text{ g}}{100.2 \text{ g/mol}} \approx 1997.99 \text{ mol} ]

Next, we multiply the number of moles by the heat of combustion:

[ \text{Total heat produced}