HELP HARD CHEMISTRY PROBLEM please help as soon as possible The following reacti
ID: 503347 • Letter: H
Question
HELP HARD CHEMISTRY PROBLEM please help as soon as possible
The following reaction has an activation energy of 262 kJ/mol.
C4H8(g) ---------->2C2H4 (g)
At 600.0 K the rate constant is 6.1× 10–8 s–1. What is the value of the rate constant at 865.0 K?
10. In what general pattern are the cations arranged? BCC, FCC, or other? Hints: still In the case of ions, the or anions may be moved apart so they are not touching, but considered to have the same general structure. makes different interpretations in Don't copy answers out the book for these questions; the book of 11. many cases. (SC, BCC, Fcc, or other? In what general pattern are the anions arranged? 12. How many total cations are found inside each unit cell? (calculate as in question 1) 13. How many total anions are found inside each unit cell? (calculate as in question 1) 14. What is the coordination number for a cation in this structure closest anions)? 15. What is the coordination number for an anion in this structure closest cations)? (edge, diagonal 16. Along what part of the unit cell are ions (regardless of type) continuously in contact of a face, diagonal of the cell)Explanation / Answer
log (K2/K1) = (Ea / 2.303 R) [1/T1 - 1/T2]
log (K2 / 6.1 x 10-8) = (262000 / 8.314 x 2.303) [1/600 - 1/865]
logK2 + 7.21 = (262000 / 19.147) [0.0017 - 0.0012]
logK2 + 7.21 = 6.842
log K2 = - 0.368
K2 = 0.43 s-1
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