One tonne of aluminum can be purchased for approximately 3000$ per tonne at the moment. There is also a market for Al2O3 as it is used for primary aluminum production and a variety of industrial applications (abrasive, catalyst support, insulators, etc...). One tonne of Al2O3 sells for approximately 400$ per tonne. What is the net cost of the chemical energy in the aluminum on a kWh basis? T

hat is the cost of aluminum minus the revenues from selling the oxides at market price. Assume that the aluminum-water reaction is used to power a large-scale power plant to produce electricity. The conversion from chemical to electrical energy is 40% efficient. Ignore the capital and operating expenses to buy and operate the power plant. What is the cost of electricity if ONLY the fuel cost is considered? Some of the more cost-efficient aluminum smelters can produce aluminum at approximately 1500$ per tonne. Repeat the two previous questions with that price instead.