24 ARRHENIUS PROBLEM. 10 points. A multi-national Pharma has developed a new mir

Question

24 ARRHENIUS PROBLEM. 10 points. A multi-national Pharma has developed a new miracle drug, however the half-life T1/2 at Temp 25°C is T1/2 32 days. At Temp The Vice President of Sales and Marketing is not pleased and he has decided to veto the release of the drug to the marketplace. He demands that the formulation team re-develop the drug such that the new half - life is T1/2-100 days. At Temp> The team decides to explore increasing the stability by lowering the storage temperature. APPROACH: Solve for k1 and k2 using the equation for half life, T1/2- 0,693/k (for both half-lives, 32 days and 100 days) and solve for Temp> using the Arrhenius Equation for ln(k1/k2) , with slope-E/R-650

Explanation / Answer

and

or   

or

or

or

or

or

or   or T2 = (0.003 + 0.002)-1 = 200 K

T2 = 200 - 273 = -73 0C

Liquid Nitrogen of Liguid Carbon dioxide can be used to cool upto this temperature.

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