ii. 需求彈性是多少？

【已刪除】4. (25%) hesh air containing 5.00 mol% water vapor is to be cooled and dehumidified to a water content of 2,50 mol% H20, A stream of fresh air is combined with a recycle stream of previously dehumidified air and passed through the cooler. The blended stream entering the unit contains 3.00 mol%H20. In the air conditioner, some of the water in the feed stream is condensed and removed as liquid. A fraction of the dehumidified air leaving the cooler is recycled and the remainder is delivered (o a room. Taking 100 moJ of dehumidified are delivered to the room as a basis of calculation, calculate the moles of fresh feed, moles of water condensed, and moles of dehumidified air recycled.

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ii. 需求彈性是多少？

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