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Author Question: Predict the sign of S for each of the following systems, which occur at constant temperature.I.The ... (Read 25 times)

Medesa

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on: Feb 15, 2020

Question 1

What is the entropy change associated with the expansion of one mole of an ideal gas from an initial volume of V to a final volume of 2.50V at constant temperature?
◦ ΔS = 2.50 R ln (Vf/Vi)
◦ ΔS = R ln 2.50
◦ ΔS = -2.50 R ln (Vf/Vi)
◦ ΔS = -R ln 2.50

Question 2

Predict the sign of ΔS for each of the following systems, which occur at constant temperature.
I.The volume of 2.0 moles of Ne (g) increases from 54 L to 62 L.
II.The pressure of 2.0 moles of Ne (g) increases from 0.90 atm to 1.0 atm.

◦ I: ΔS = positive; II: ΔS = positive
◦ I: ΔS = negative; II: ΔS = positive
◦ I: ΔS = positive; II: ΔS = negative
◦ I: ΔS = negative; II: ΔS = negative
Chemistry ¦ McMurry, Fay, Robinson ¦ 7th Edition
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Marked as best answer by Medesa on Feb 15, 2020

mrphibs

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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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Medesa

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Reply 2 on: Feb 15, 2020
Great answer, keep it coming :)

aliotak

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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