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Author Question: Consider the reaction: C2H5OH(l) + 3O2(g) 2CO2(g) + 3H2O(l); H = 1.37 103 kJConsider the ... (Read 120 times)

casperchen82

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on: Mar 21, 2021

Question 1

Consider the following thermochemical equations:

​

ΔH° (kJ)

H2(g) +Cl2(g) →2HCl(g)

–184

H2(g) →2H(g)

432

Cl2(g) →2Cl(g)

239

Calculate the energy of an H-Cl bond using thesethermochemical equations.


◦ 855 kJ
◦ 244 kJ
◦ 487 kJ
◦ 92 kJ
◦ 428 kJ

Question 2

Consider the reaction:
              C2H5OH(l) + 3O2(g) → 2CO2(g) + 3H2O(l); ΔH = –1.37 × 103 kJ
Consider the following propositions:
I. The reaction is endothermic
II. The reaction is exothermic.
III. The enthalpy term would be different if the water formed was gaseous.
Which of these propositions is (are) true?

◦ I
◦ II
◦ III
◦ I, II
◦ II, III
Chemistry: An Atoms First Approach ¦ Zumdahl, DeCoste ¦ 3rd Edition
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Marked as best answer by casperchen82 on Mar 21, 2021

ladyjames123

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Reply #1 on: Mar 21, 2021
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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casperchen82

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Reply 2 on: Mar 21, 2021
Gracias!

nguyenhoanhat

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Reply 3 on: Yesterday
Wow, this really help

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