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(Solved): Using Kopp's rule, estimate the heat capacity of 2,5 -dimethylhexane at \( 20^{\circ} \mathrm{C} \) ...
Using Kopp's rule, estimate the heat capacity of 2,5 -dimethylhexane at \( 20^{\circ} \mathrm{C} \). At \( 20^{\circ} \mathrm{C}, 2,5 \)-dimethylhexane (structural formula: \( \left.\mathrm{CH}_{3} \mathrm{CH}\left(\mathrm{CH}_{3}\right) \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CH}\left(\mathrm{CH}_{3}\right) \mathrm{CH}_{3}\right) \) is a liquid. \( \left(C_{p}\right)_{\mathrm{C}_{3} \mathrm{H}} \) How much heat is required to heat \( 6.80 \mathrm{~kg} \) of 2,5 -dimethylhexane from \( 18.0^{\circ} \mathrm{C} \) to \( 23.0^{\circ} \mathrm{C} \) ? \( Q \)
Expert Answer
The molecular heat capacity of a solid compound, according to Kopp, is the sum of the atomic heat capacities of the constituent elements. Elements with lower atomic heat capacities than those req