What is the sign of the enthalpy of reaction for the reaction:
P4O6(s) + 2 O2(g) + 6 H2O(g) 4 H3PO4(s)
Assuming that all compounds are present in their most stable state at 25°C and 1 atm pressure?
A) positive
B) negative
C) impossible to determine from the data
Correct Answer:
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