Dinitrogen Tetraoxide, N₂O₄, Decomposes to Nitrogen Dioxide, NO₂, in a First-Order

question 36

Multiple Choice

Dinitrogen tetraoxide, N₂O₄, decomposes to nitrogen dioxide, NO₂, in a first-order process. If k = 2.5 × 10³ s⁻¹ at −5°C and k = 3.5 × 10⁴ s⁻¹ at 25°C, what is the activation energy for the decomposition?

• A)0.73 kJ/mol
• B)58 kJ/mol
• C)140 kJ/mol
• D)580 kJ/mol
• E)> 1000 kJ/mol