The Gas-Phase Decomposition of N₂O₅ Is a First-Order Process with a Rate

question 46

Multiple Choice

The gas-phase decomposition of N₂O₅ is a first-order process with a rate constant of 1.50 × 10^-3 s^-1 at 55°C.The decomposition reaction is
N₂O₅(g) → 2NO₂(g) +
O₂(g)
If 8.0 g of N₂O₅ is placed in vessel 1 and 16.0 g of N₂O₅ in vessel 2 and the vessels are at the same temperature (55°C) and the same pressure,how much time is required for half of the N₂O₅ to decompose in each vessel?

• A)Vessel 1 requires the same amount of time as vessel 2.
• B)Vessel 1 requires twice as much time as vessel 2.
• C)Vessel 1 requires three times as much time as vessel 2.
• D)Vessel 1 requires four times as much time as vessel 2.
• E)Vessel 2 requires twice as much time as vessel 1.

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Definitions:

George Homans

An American sociologist known for his work in developing social exchange theory, which explains social behavior in terms of the exchange of goods, services, and recognition.

Value

The importance, worth, or usefulness of something, often influenced by social norms and individual perceptions.

Less Valuable

Considered to have lower worth or importance in comparison to something else.

George Homans

An American sociologist known for his work in developing social exchange theory, which posits that the exchange of goods, services, and social values plays a key role in the formation of social relationships.