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Author Question: Sodium reacts violently with water according to the equation:2 Na(s) + 2 H2O(l) 2 NaOH(aq) + ... (Read 51 times)

xclash

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on: Feb 15, 2020

Question 1

Without doing any calculations, determine whether the standard entropy change, ΔS° is positive or negative for each of the following reactions.

reaction 1: S(s, rhombic) + O2(g) → SO2(g)
reaction 2: 2 SO2(g)+ O2(g) → 2 SO3(g)

◦ ΔS° is positive for both reactions.
◦ ΔS° is negative for both reactions.
◦ ΔS° is positive for reaction 2 but negative for reaction 1.
◦ ΔS° is positive for reaction 1 but negative for reaction 2.

Question 2

Sodium reacts violently with water according to the equation:

2 Na(s) + 2 H2O(l) → 2 NaOH(aq) + H2(g)


The resulting solution has a higher temperature than the water prior to the addition of sodium. What are the signs of ΔH° and ΔS° for this reaction?
◦ ΔH° is negative and ΔS° is negative.
◦ ΔH° is positive and ΔS° is positive.
◦ ΔH° is negative and ΔS° is positive.
◦ ΔH° is positive and ΔS° is negative.
Chemistry ¦ McMurry, Fay, Robinson ¦ 7th Edition
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Marked as best answer by xclash on Feb 15, 2020

akpaschal

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Reply #1 on: Feb 15, 2020
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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xclash

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Reply 2 on: Feb 15, 2020
Excellent

Kedrick2014

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Reply 3 on: Yesterday
Gracias!

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