Molten sodium chloride is to be used as a constant temperature bath for a high-temperature chemical reactor. Two hundred kilograms of solid NaCl at 300 K is charged into an insulted vessel, and a 3000 kW electrical heater is turned on, raising the salt to its melting point of 1073 K and melting it at a constant pressure of 1 atm. ((a)to (c))

5. Problem 8.50 (adjusted): Molten sodium chloride is to be used as a constant temperature bath for a high-temperature chemical reactor. Two hundred kilograms of solid NaCl at 300K is charged into an insulted vessel, and a 3000kW electrical heater is turned on, raising the salt to its melting point of 1073K and melting it at a constant pressure of 1atm. a. If the heat capacity of solid NaCl,Cp has a temperature dependence of: Cp(molKJ)=45.12+0.01765T(K) and the heat of fusion of NaCl at 1073K is 30.21kJ/mol, calculate the value of H(molkJ) for the transition of NaCl from a solid at 300K to a liquid at 1073K b. Write and solve the energy balance equation for this closed system, isobaric process to determine the required heat input in kilojoules c. If 85% of the full power of 3000kW goes into heating and melting the salt, how long does the process take