Using Hess' Law,what Is ΔH°_rxn at 25°C for the Following

question 99

Multiple Choice

Using Hess' law,what is ΔH°_rxn at 25°C for the following reaction? ClF(g) + F₂(g) → ClF₃(g) 2ClF(g) + O₂(g) → Cl2O(g) + OF₂(g) ΔH°_rxn = +167.4kJ/mol
2ClF₃(g) + 2O₂(g) → Cl₂O(g) +3OF₂(g) ΔH°_rxn = +341.4kJ/mol
2F₂(g) + O₂(g) → 2OF₂(g) ΔH°_rxn = -43.4 kJ/mol

• A)-217.5 kJ/mol
• B)-130.2 kJ/mol
• C)217.5 kJ/mol
• D)-108.7 kJ/mol
• E)465.4 kJ/mol

---

Definitions:

Lower-Class Citizens

Individuals or groups within a society that are considered to have the lowest social and economic status.

Reparation Pay

Financial compensation awarded to individuals or communities as restitution for past injustices or damages, such as slavery or war.

Electoral College

A body of electors established by the United States Constitution, charged with the responsibility of electing the President and Vice President.

Presidential Electors

Members of the Electoral College who are selected in each U.S. presidential election to formally elect the President and Vice President of the United States.