The Elementary Reaction 2NO₂ (G) → 2NO (G) + O₂

question 73

Multiple Choice

The elementary reaction 2NO₂ (g) → 2NO (g) + O₂ (g)
Is second order in NO₂ and the rate constant at 660 K is 5.23 M^-1s^-1. The reaction half-life at this temperature when [NO₂]₀ = 0.45 M is ________ s.

• A)2.4
• B)7.6
• C)0.19
• D)0.13
• E)0.42

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