Thermodynamic data are given below (at T = 25. °C) and may be of use in doing this problem.
Phosphoric acid (H3PO4) may be prepared by adding tetraphosphorus decaoxide (P4O10) to water (H2O), by the process
P 4O10(s) + 6 H2O(I) → 4 H3PO4(s)
a) What are ΔS°rxn and ΔG°rxn for the below reaction, at T = 25.0 °C?
b) Give the correctly balanced formation reaction for H 3PO4(s).
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