How can I solve thermochemistry changes of state/phase problems?

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Answer 1 · 2015-11-20T17:50:41

When a compound is changing phase, i.e. it is in a phase transition, it is in equilibrium. That means #DeltaG_"trs" = 0#. So:

#cancel(DeltaG_"trs") = DeltaH_"trs" - T_"trs"DeltaS_"trs"#

#color(blue)(DeltaH_"trs" = T_"trs"DeltaS_"trs")#

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