(a) What is the difference between a CFC and an HFC? (b)
Chapter , Problem 69ae(choose chapter or problem)
Problem 69ae
(a) What is the difference between a CFC and an HFC? (b) It is estimated that the lifetime for HFCs in the stratosphere is 2-7 years. Why is this number significant7 (c)Why have HFCs been used to replace CFCs? (d) What is the major disadvantage of HFCs as replacements for CFCs?
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