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Author Question: Calculate S at 25C for the reduction of PbO(s), 2PbO(s) + C(s) 2Pb(s) + CO2(g) given these absolute ... (Read 61 times)

haydenjmcm

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Question 1

Calculate ΔG° for the reaction 3NO2(g) + H2O(l) → 2HNO3(l) + NO(g).
         
 
 
ΔG°f  (kJ/mol)
 
H2O(l)
–237.2
 
HNO3(l)
–79.9
 
NO(g)
  86.7
 
NO2(g)
  51.8
 

◦ 8.7 kJ/mol
◦ 192 kJ/mol
◦ –414 kJ/mol
◦ –192 kJ/mol
◦ –155 kJ/mol

Question 2

Calculate ΔS° at 25°C for the reduction of PbO(s), 2PbO(s) + C(s) → 2Pb(s) + CO2(g) given these absolute entropies:
 
 
S°  (J/K·mol)
 
PbO(s)
69.45
 
C(s)
    5.7
 
Pb(s)
64.89
 
CO2(g)
213.6
 

◦ +198.8 J/K·mol
◦ +488.0 J/K·mol
◦ +353.6 J/K·mol
◦ –203.3 J/K·mol
◦ +203.3 J/K·mol


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Marked as best answer by haydenjmcm on Nov 5, 2023

saly

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haydenjmcm

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Reply 2 on: Nov 5, 2023
Thanks for the timely response, appreciate it


CAPTAINAMERICA

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Reply 3 on: Yesterday
Gracias!

 

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