Asked Feb 8, 2020
The following figure shows the plots of ΔΔH and TΔΔS for a phase change as a function of temperature.

At what temperature is this process at equilibrium?

At what temperature(s) is the process spontaneous?

Choose one:A.  60.0°CB.  0.0°C to 60.0°CC.  60.0°C to 100.0°CD.  0.0°C to 100.0°C

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Expert Answer

Step 1

Chemistry homework question answer, step 1, image 1

If ΔH = TΔS, then ΔG is zero (0), the reaction is at equilibrium.

From the figure, it is evident that at 60 oC ΔH = TΔS.

Therefore, the process is at equilibrium at 60 oC.


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