At a High Temperature,the First-Order Decomposition of N₂O₅(g)produces NO₂(g)and O₂(g)

question 6

Multiple Choice

At a high temperature,the first-order decomposition of N₂O₅(g) produces NO₂(g) and O₂(g) .If the initial concentration of 0.400 M N₂O₅(g) is reduced to 0.169 M after 118 seconds,what is the rate constant for the reaction?

• A) 1.96 × 10−³ s−¹
• B) 2.29 × 10−³ s−¹
• C) 4.37 × 10−³ s−¹
• D) 7.30 × 10−³ s−¹
• E) 1.37 × 10² s−¹

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