Assume that solutions of ethylbenzene : benzene behave ideally. a) Calculate the entropy of mixing if 40 g of ethylbenzene is mixed into 50g of benzene. b) At room temperature (298 K), what is ΔmixG for mixing 40g of ethylbenzene (PhEt) and 50g of benzene (PhH)? c) Would you notice a temperature change associated with the process in parts a) & b)?

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Assume that solutions of ethylbenzene : benzene behave ideally.

a) Calculate the entropy of mixing if 40 g of ethylbenzene is mixed into 50g of benzene.
b) At room temperature (298 K), what is ΔmixG for mixing 40g of ethylbenzene (PhEt) and 50g of benzene (PhH)?
c) Would you notice a temperature change associated with the process in parts a) & b)?
d) Instead, you mix 40g of benzyl alcohol (PhMeOH) into 50g of benzene (PhH). Let’s denote the difference between this process and the process in part b) as:
                  ΔΔG = ΔmixG [PhMeOH ∶ PhH] − ΔmixG [PhEt ∶ PhH]

What do you expect the sign of ΔΔG to be? (ΔΔG<0, ΔΔG≈0, or ΔΔG>0)
Briefly justify your answer.

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