A 1.720 g sample of naphthalene (C10H8) undergoes combustion in a bomb calorimeter, causing the temperature to rise from 24.00°C to 47.57°C. If the heat capacity of the calorimeter is 2940 J/°C, what is the enthalpy of combustion of naphthalene in kJ/mol?

Consider the combustion of liquid methanol, CH₃OH(l): CH₃OH(l) + 3/2 O₂(g) → CO₂(g) + 2 H₂O(l) ΔH = -726.5 kJ (d) If the reaction were written to produce H₂O(g) instead of H₂O(l), would you expect the magnitude of ΔH to increase, decrease, or stay the same? Explain.

The normal freezing point of n-octane (C₈H₁₈) is -57 °C. (a) Is the freezing of n-octane an endothermic or exothermic process?