Question: Freon-12, CF 2 Cl 2 , which has been widely used in air conditioning systems, is considered a threat to the ozone layer in the

Freon-12, CF₂Cl₂, which has been widely used in air conditioning systems, is considered a threat to the ozone layer in the stratosphere. Calculate the root-mean-square velocity of Freon-12 molecules in the lower stratosphere where the temperature is -65C.

A :20 m/s

B: 120 m/s

C: 2l0 m/s

D: 260 m/s

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