Determine the Standard Enthalpy of Formation for NO Given the Following

question 115

Multiple Choice

Determine the standard enthalpy of formation for NO given the following information about the formation of NO₂ under standard conditions, and $\Delta$ H ${ } _ { f } ^ { \circ } \mathrm { }$ (NO₂) = + 33.2 kJ/mol.
2NO(g) + O₂(g) $\rightarrow$ 2NO₂(g) $\Delta$ H_rxn = -114.2 kJ

• A) 90.3 kJ/mol
• B) -90.3 kJ/mol
• C) -147.4 kJ/mol
• D) -180.6 kJ/mol
• E) -73.7 kJ/mol