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Author Question: Which answer below is not a statement of the second law of thermodynamics? (Read 59 times)

amal

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on: Aug 6, 2020

Question 1

When water of mass m and specific heat c is heated from absolute temperature T1 to absolute temperature T2, its change in entropy is

◦
cm ln(T2/T1)

◦
cm (T2/T1)

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cm (T2−T1)/T1

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cm (T2−T1)/T2

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cm (T2−T1)/(T2 + T1)


Question 2

Which answer below is not a statement of the second law of thermodynamics?

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Real processes proceed in a preferred direction.

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Energy does not flow spontaneously by heat from a cold to a hot reservoir.

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The entropy of the universe increases in all natural processes.

◦
In theory, heat engines working in a cycle employ reversible processes.

◦
You cannot construct a heat engine, operating in a cycle that does nothing but take heat from a reservoir and perform an equal amount of work.
Physics for Scientists and Engineers ¦ Serway, Jewett ¦ 9th Edition
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Marked as best answer by amal on Aug 6, 2020

mbcrismon

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Reply #1 on: Aug 6, 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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amal

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Reply 2 on: Aug 6, 2020
:D TYSM

abro1885

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

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