20. For which process is ΔS negative?
(A) evaporation of 1 mol of CCl₄(l)
(B) mixing 5 mL of ethanol with 25 mL of water
(C) compressing 1 mol of Ne at constant temperature from 1.5 atm to 0.5 atm
(D) raising the temperature of 100 g of Cu from 275 K to 295 K

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