Question 1
For the reaction: 2 N
2O
5(g) → 4 NO
2(g) + O
2(g) the rate law is:
![](data:image/png;base64, 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)
=
k[N
2O
5]
At 300 K, the half-life is 2.50 × 10
4 seconds and the activation energy is 103.3 kJ/mol. What is the half-life at 310 K?
◦ 2.49 × 10
4 s
◦ 9.51 × 10
4 s
◦ 9.51 × 10
6 s
◦ 6.57 × 10
3 s
◦ 1.87 × 10
-1 s
Question 2
For the reaction: 2 N
2O
5(g) → 4 NO
2(g) + O
2(g) the rate law is:
![](data:image/png;base64, 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)
=
k[N
2O
5]
At 300 K, the half-life is 2.50 × 10
4 seconds and the activation energy is 103.3 kJ/mol O
2. What is the half-life at 350 K?
◦ 67.3 s
◦ 9.3 × 10
6 s
◦ 1.09 × 10
-17 s
◦ 2.48 × 10
4 s
◦ 0.145 s