Author Question: At a particular temperature the first-order gas-phase reaction 2N2O5 2N2O4 + O2 has a half-life for ... (Read 20 times)

903f23fj0 · **on:** Nov 5, 2023

Question 1

At 700 K, the rate constant for the following reaction is 6.2 × 10^–4 min^–1.

How many minutes are required for 20% of a sample of cyclopropane to isomerize to propene?
◦ 1,120 min
◦ 360 min
◦ 3710 min
◦ 1.4 × 10^–4 min
◦ 280 min

Question 2

At a particular temperature the first-order gas-phase reaction 2N₂O₅→ 2N₂O₄ + O₂ has a half-life for the disappearance of dinitrogen pentoxide of 3240 s. If 1.00 atm of N₂O₅ is introduced into an evacuated 5.00 L flask, what will be the total pressure of the gases in the flask after 1.50 hours?
◦ 0.685 atm
◦ 1.00 atm
◦ 0.315 atm
◦ 1.68 atm
◦ 1.34 atm

gyvette · **Reply #1 on:** Nov 5, 2023

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