Imagine being able to use your computer to make phone calls with the help of special software and a microphoneâand bypassing your phone company and their charges.
So O2 has zero of heat of formation (or enthalpy of formation). The enthalpy of a reaction is defined like this: H = Hproducts-H reactants. The enthalpy of reaction in this case, is the same as the heat of combustion. Hproducts is obtained summing the heats of formation.
How to Determine the Propane Burn Rate for a Furnace. 1  Determine the rating of a propane furnace. 2  Convert the BTU value of the furnace to pounds and gallons. 3  Calculate the furnace's fuel consumption rate. 4  Multiply the consumption rate by the amount of propane in the tank to determine the burn rate.