A typical frostless refrigerator uses 655 kWh of energy

Problem 119EA typical frostless refrigerator uses 655 kWh of energy per year in the form of electricity.Suppose that all of this electricity is generated at a power plant that burns coal containing3.2% sulfur by mass and that all of the sulfur is emitted as SO2 when the coal is burned. Ifall of the SO2 goes on to react with rainwater to form H2SO4 , what mass of H2SO4 doesthe annual operation of the refrigerator produce (Hint: Assume that the remainingpercentage of the coal is carbon and begin by calculating for the combustion ofcarbon.) Step by step solutionStep 1 of 8The combustion reaction of carbon is as follows.The standard enthalpy of formation for each reactant and product in the chemical reaction are asfollows.Let’s write the standard enthalpy change for the reaction is as follows. and are the stoichiometric coefficients of reactants and products. and are thestoichiometric coefficients of reactants and products.\nLet’s calculate the standard enthalpy change for the combustion of carbon. forthe combustion of carbon.Substitute the values in the equation (1)Hence, the standard enthalpy change for the combustion of carbon is -393.5 kJ.