A chemical reactor is used to produce a certain product. The reaction is exothermic, with a heat of reaction of -50 kJ/mol. The reactor operates at a temperature of 500 K and a pressure of 1 atm. The feed stream to the reactor contains 2 moles of reactant A per liter, with a flow rate of 5 liters per minute. The reactor has a volume of 100 liters and is well-insulated. What is the maximum production rate of the product?