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From the values given for delta H* and delta S*, calculate delta G* for each of the following reactions at 298 K. If the reaction is not spontaneous under standard conditions at 298 K, at what temperature (if any) would the reaction become spontaneous?
a) 2 PbS (s) + 3 O2 (g) ---> 2 PbO (s) + 2 SO2 (gO
delta H* = -844 kJ; delta S* = -165 J/K
b) 2 POCl3 (g) ---> 2 PCl3 (g) + O2 (g)
delta H* = 572 kJ; delta S* = 179 J/K
***delta = change in
Please show work, no power points please
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