Consider a 1000 MW coal-fired power plant has an overall thermal efficiency of 40%. This plant uses sub-bituminous coal with an average heat value of 24 MJ/kg, an ash content of 5%, a sulfur content of 2.5%, and a CO2 emission factor of 220 lb/million Btu. Calculate: a) The heat emitted to the environment (Btu/sec), b) The coal feed rate (tons/ day), c) The CO2 emission rate (metric tons/day). d) The efficiency of the APC to control sulfur emissions, considering the plant needs to meet the emission standard of 0.15 lb SO2/million Btu of heat input