When backpacking in the wilderness hikers often boil water to sterilize it for drinking. Presume that you are planning a back packing trip and need to boil 30 L of water for your group. Define what volume of fuel should you bring? Assume each of the following the fuel has an average formula of C7H16; 15% of the heat generated from combustion goes to heat the water (the rest is lost to the surroundings); the density of the fuel is 0.78 g/mL the initial temperature of the water is 25.0 degrees C as well as the standard enthalpy of formation of C7H16 is-224.4kJ/mol