Determine the coast of heating 200 mL of water (enough to make a cup of coffee or tea) from 20 degree C to 100 degree C. A gas company in Massachusetts charges $1.30 for 15 cubic feet of natural gas (CH4) calculated at the 20 degree C and 1.0 atm. Assume that only 50 percent of the heat generated by the combustion is used to heat the water; the rest of the heat is lost to the surroundings.