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Author Question: At constant pressure, the combustion of 20.0 g of C2H6(g) releases 1036 kJ of heat. What is H for ... (Read 117 times)

Chelseaamend

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on: Jul 8, 2021

Question 1

At 1.0133 bar, the heat of sublimation of gallium is 277 kJ mol-1 and the heat of vaporization is 271 kJ mol-1. To the correct number of significant figures, how much heat is required to melt 5.50 mol of gallium at 1.0133 bar?
◦ 6 kJ
◦ 33 kJ
◦ 244 kJ
◦ 274 kJ

Question 2

At constant pressure, the combustion of 20.0 g of C2H6(g) releases 1036 kJ of heat. What is ΔH for the reaction given below?

2C2H6(g) + 7O2(g) → 4CO2(g) + 6H2O(l)

◦ -173 kJ mol-1
◦ -779 kJ mol-1
◦ -1560 kJ mol-1
◦ -3115 kJ mol-1
General Chemistry: Principles and Modern Applications ¦ Petrucci, Herring, Madura, Bissonnette ¦ 11th Edition
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Marked as best answer by Chelseaamend on Jul 8, 2021

lorealeza

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Reply #1 on: Jul 8, 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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Chelseaamend

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Reply 2 on: Jul 8, 2021
Gracias!

patma1981

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Reply 3 on: Yesterday
Wow, this really help

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