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Author Question: How much energy is evolved during the reaction of 48.7 g of Al according to the reaction below? ... (Read 61 times)

sammy

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on: Nov 18, 2019

Question 1

How much energy is required to decompose 765 g of PCl3 according to the reaction below? The molar mass of PCl3 is 137.32 g mol-1 and may be useful.

4PCl3(g) → P4(s) + 6Cl2(g)DrH° = +1207 kJ

◦ 1.68 × 103 kJ
◦ 4.33 × 103 kJ
◦ 6.72 × 103 kJ
◦ 2.31 × 103 kJ
◦ 5.95 × 103 kJ

Question 2

How much energy is evolved during the reaction of 48.7 g of Al according to the reaction below? Assume that there is excess Fe2O3.

Fe2O3(s) + 2Al(s) → Al2O3(s) + 2Fe(s)DrH° = -852 kJ

◦ 241 kJ
◦ 415 kJ
◦ 130 kJ
◦ 207 kJ
◦ 769 kJ
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Marked as best answer by sammy on Nov 18, 2019

triiciiaa

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Reply #1 on: Nov 18, 2019
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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sammy

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Reply 2 on: Nov 18, 2019
Wow, this really help

amandanbreshears

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

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