Suppose a boil water notice is sent out advising all residents in the area to boil their water before drinking it or using it for cooking. You need to boil 10.5 L of water using your natural gas (primarily methane) stove. What volume of natural gas is needed to boil the water if only 18.1% of the heat generated goes towards heating the water. Assume the density of methane is 0.668 g/L, the density of water is 1.00 g/mL, and that the water has an initial temperature of 23.4 C. Enthalpy of formation values can be found in this table. Assume that gaseous water is formed in the combustion of methane.