At a Particular Temperature the First-Order Gas-Phase Reaction N₂O₅ $\rarr$ 2NO₂ + ¹/₂O₂ Has a Half-Life for the Disappearance of 2NO₂

question 1

Multiple Choice

At a particular temperature the first-order gas-phase reaction N₂O₅ $\rarr$ 2NO₂ + ¹/₂O₂ has a half-life for the disappearance of dinitrogen pentoxide of 5130 s. Suppose 0.450 atm of N₂O₅ is introduced into an evacuated 2.00 L flask. What will be the total gas pressure inside the flask after 3.00 hours

• A) 0.969 atm
• B) 0.105 atm
• C) 0.795 atm
• D) 1.14 atm
• E) 0.864 atm

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