A 60-gal hot water heater, completely filled with liquid water, catastrophically ruptures at a pressure of 290 psig. Estimate: a. The fraction of water flashed. b. The energy of explosion in terms of an equivalent amount of TNT, in pounds. Calculate this using the total enthalpy of the hot water in the heater when it ruptures minus the enthalpy of an equivalent amount of liquid water at the normal boiling point of 212F. c. What overpressure would result at a distance of 50 feet? Use a steam table to determine the enthalpy values.