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Author Question: At 25C, the following heats of reaction are known:2ClF(g) + O2(g) Cl2O(g) + F2O(g)Hrxn = 167.4 ... (Read 60 times)

parker123

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on: Nov 5, 2023

Question 1

An exothermic reaction causes the surroundings to
◦ increase in temperature
◦ become acidic.
◦ expand.
◦ decrease in temperature.
◦ release CO2.

Question 2

At 25°C, the following heats of reaction are known:
2ClF(g) + O2(g) → Cl2O(g) + F2O(g)
ΔH°rxn =  167.4 kJ/mol
2ClF3(g)  +  2O2(g) → Cl2O(g)  +  3F2O(g)
ΔH°rxn =  341.4 kJ/mol
2F2(g) + O2(g) → 2F2O(g)
ΔH°rxn =  –43.4 kJ/mol
At the same temperature, use the above data to calculate the heat released (kJ) when 3.40 moles of ClF(g) reacts with excess F2:
         ClF(g) + F2(g) → ClF3(g)

◦ 109 kJ
◦ 233 kJ
◦ 370. kJ
◦ 465 kJ
◦ 1,580  kJ
Chemistry ¦ Chang, Goldsby ¦ 11th Edition
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Marked as best answer by parker123 on Nov 5, 2023

Sha

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Reply #1 on: Nov 5, 2023
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parker123

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Reply 2 on: Nov 5, 2023
Great answer, keep it coming :)

raenoj

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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