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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 17.5 L of water using your natural gas (primarily methane) stove. What volume of natural gas is needed to boil if only 10.3% 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 21.1 °C . Enthalpy of fomration values can be found in this table. Assume that gaseous water is formed in the combustion of methane.