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Author Question: Consider the reaction2N2O5(g) 4NO2(g) + O2(g)at 25C for which the following data are ... (Read 57 times)

lracut11

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on: Mar 21, 2021

Question 1

Consider the reaction:

    2SO2(g) 2SO3(g)

for which ΔH° = –200. kJ and ΔS° = –186.5 J/K at 25°C. Assuming that ΔH° and ΔS° are independent of temperature, calculate the temperature where Kp = 1.


◦ 972. K
◦ 2072 K
◦ 200. K
◦ 1072 K
◦ None of these are correct.

Question 2

Consider the reaction
2N2O5(g) 4NO2(g) + O2(g)
at 25°C for which the following data are relevant:
 
ΔHf°
S°
N2O5
13.30 kJ/mol
355.7 J/K·mol
NO2
33.15 kJ/mol
239.9 J/K·mol
O2
0 kJ/mol
204.8 J/K·mol

​

CalculateΔS°for the reaction.

Reference: Ref 17-4

​

​


◦ 808.7 J/K
◦ 89.0 J/K
◦ 453.0 J/K
◦ -266.7 J/K
◦ 1164.4 J/K
Chemistry: An Atoms First Approach ¦ Zumdahl, DeCoste ¦ 3rd Edition
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Marked as best answer by lracut11 on Mar 21, 2021

parshano

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Reply #1 on: Mar 21, 2021
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lracut11

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Reply 2 on: Mar 21, 2021
Wow, this really help

diana chang

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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