Note: this is a multi-part question. once an answer is submitted, you will be unable to return to this part. air at 14.7 psia, 35°f, and 50 percent relative humidity is first heated to 65°f in a heating section and then humidified by introducing water vapor. the air leaves the humidifying section at 85°f and 55 percent relative humidity. use data from the tables. determine the amount of steam added to the air.