Question: i need help with both of these please ! especially 25 i dont understand them at all 25. (10 pts) The rate constant for a

i need help with both of these please ! especially 25 i dont understand them at all

i dont understand them at all 25. (10 pts) The rate constant

25. (10 pts) The rate constant for a first-order reaction is 0.58s1 at 25C. At what temperature would the rate constant have a value of 0.75s12. The activation energy is 84kJ/mol. (1) 27C (2) 30C (3) 45C (4) 300C (5) 310C 24. (10pts) The gas phase reaction, PCl5PCl3+Cl2, obeys the rate-law expression Rate =k[PCl ]. At 400K the specific rate constant is 0.0371min1. How many hours are required to reduce a sample of PCl5 to 10% of its original amount? (1) 186hrs (2) 1.03hrs (3) 3.10 hrs (4) 3.71 hrs (5) 62hrs

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