Assignment 2-solution

8 solution 7 a given for year 1950 1959 p 02 we know

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Unformatted text preview: (1950-1959) P = 0.2 We know that, () Therefore, () Now, ( ( ( As per the problem ( ( )⁄ ⁄ ) ) ( ( )⁄ ) ) ( ( )⁄ grams per year )⁄ )........................................................(1) ⁄ ( ) Substituting the value in equation (1) we get, () ( ⁄ ) (b) No (c) () ( ⁄ ) ( ⁄ ) Now, Substituting the values we get, () ( solving the equation for t we get (t) = 194.06 years ⁄ ) ( ⁄ ) 8. The production of CFC-11 in a given year resulted in a significant ozone depletion. By what fraction would this depletion be reduced if half the CFC-11 produced in that year were replaced by the equivalent mass production of HCFC-22? Assume steady state ozone depletion in both cases. Solution #8: Reduction in ozone depletion if CFC-11 was replaced by HCFC-22 is given by: Ozone Depletion Potential (ODP) = ( Ozone Depletion Potential (ODP) of CFC-11 = 1 Ozone Depletion Potential (ODP) of HCFC-22 = 0.034 If half of CFC-11 is replaced by HCFC-22, OPD = ( Reduction in depletion = ( ) ⁄ ) ) ( )...
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