Question

Фосфор при окислении кислородом горит, образуя оксид фосфора (V) используя тот факт, что для образования 1 моль оксида фосфора необходимо 1530,5 кДж , напишите термохимическое уравнение реакции.

Answer 1

Ответ: 4Р+5О2=>2Р2О5+3061кДж Валентность Р=5

Answer 2

Thermochemical Equation for the Oxidation of Phosphorus by Oxygen

The oxidation of phosphorus by oxygen results in the formation of phosphorus pentoxide (P2O5). The reaction can be represented by the following thermochemical equation:

P4(s) + 5O2(g) → 2P2O5(s) ΔH = -1530.5 kJ

In this equation, P4 represents solid phosphorus, O2 represents gaseous oxygen, P2O5 represents solid phosphorus pentoxide, and ΔH represents the enthalpy change of the reaction.

According to the given information, the formation of 1 mole of phosphorus pentoxide requires 1530.5 kJ of energy.

Please note that the sources provided did not directly mention the thermochemical equation for the oxidation of phosphorus by oxygen. However, the information provided is consistent with the known thermochemical data for this reaction.

Let me know if there's anything else I can help you with!