Author Question: The activation energy for the following reaction is 60. kJ/mol. Sn2+ + 2Co3+ Sn4+ + 2Co2+By what ... (Read 45 times)

olsonmanny@gmail.com · **on:** Nov 5, 2023

Question 1

The activation energy for the following first-order reaction is 102 kJ/mol.
N₂O₅(g) → 2NO₂(g) + ¹/₂O₂(g)
The value of the rate constant (k) is 1.35 × 10^–4 s^–1 at 35°C. What is the value of k at 0°C?
◦ 8.2 × 10^–7 s^–1

◦ 1.9 × 10^–5 s^–1

◦ 4.2 × 10^–5 s^–1

◦ 2.2 × 10^–2 s^–1

◦ none of these

Question 2

The activation energy for the following reaction is 60. kJ/mol.
Sn²⁺ + 2Co³⁺→ Sn⁴⁺ + 2Co²⁺
By what factor (how many times) will the rate constant increase when the temperature is raised from 10°C to 28°C?
◦ 1.002
◦ 4.6
◦ 5.6
◦ 2.8
◦ 696

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

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