Bottled straight-chain alkanes can be used as fuels, including heptane and octane .Which one has the greater fuel density?By how much are the fuel values different? Give the magnitude of the difference (the absolute value). The image presents a table comparing the combustion enthalpy and liquid density of heptane and octane.**Table Overview:**1. **ΔH°_comb (kJ/mol):** - Heptane: -4871.0 kJ/mol - Octane: -5430.0 kJ/mol2. **Liquid Density (g/mL):** - Heptane: 0.655 g/mL - Octane: 0.703 g/mL**Details:**- The table is divided into two main sections, one for each substance (heptane and octane).- Under each substance, the values for the standard enthalpy of combustion (\( \Delta H^\circ_{\text{comb}} \)) in kilojoules per mole (kJ/mol) and liquid density in grams per milliliter (g/mL) are provided.- The negative values for \(\Delta H^\circ_{\text{comb}}\) indicate exothermic reactions, where energy is released upon combustion.- The densities indicate the mass per unit volume of the liquid form of each substance.

Formula and molar mass of heptanes – C7H16, Molar mass = 100.2 g/mol Formula and molar mass of Octane – C8H18, Molar mass = 114.2 g/molVolume of Heptane and Octane – Density = MassVolumeVolume = MassDensityVolume of heptane = 100.2 g/mol0.655 g/mL=152.98 mL/molVolume of octane = 114.2 g/mol0.703 g/mL=162.45 mL/molFuel density is obtained from heat released and volume – Fuel density = Heat released Volume Fuel density of heptane = - 4871 kJ/mol152.98 ml/mol=-31.84 kJ/mLFuel density of octane = - 5430 kJ/mol162.45 ml/mol=-33.43 kJ/mLFuel density of heptane is larger than octane. Difference in fuel density = Furl density of heptane - fuel density of octane =- 31.84 kJ/mL - -33.43 kJ/mL=1.59 kJ/mL Hence, the difference in fuel density = 1.59 kJ/mL