Determine how much lime (Cao) in lb/hr will be required to reduce SO2 emissions from an incinerator from 140 lb/hr to 25 tons per year assuming that the agent is 98% pure and the operating year is 7200 hours. Note: Use caustic soda (NaOH) or quick lime (Cao) to neutralize 140 lb/hr of SO2 to 25 tons/yr. Assume that the agent used is 98% pure. Provide answer in lb/hr