The First-Order Reaction,2 N₂O(g)→ 2 N₂(g)+ O₂(g),has a Rate Constant

question 42

Multiple Choice

The first-order reaction,2 N₂O(g) → 2 N₂(g) + O₂(g) ,has a rate constant equal to 0.76 s^-1 at 1000 K.How long will it take for the concentration of N₂O to decrease to 12% of its initial concentration?

• A)0.62 s
• B)2.8 s
• C)6.3 s
• D)8.4 s

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