Author Question: The rate constant for a reaction at 40.0C is exactly 3 times that at 20.0C. Calculate the Arrhenius ... (Read 147 times)

tiffannnnyyyyyy · **on:** Mar 21, 2021

Question 1

The radioactive nuclide ¹⁷⁰Ta undergoes first-order decay with a half-life of 6.76 min. If a quantity of ¹⁷⁰Ta is produced, what fraction remains after 74.0 seconds?

◦ 0.0914
◦ 0.000507
◦ 0.182
◦ 0.881
◦ 0.119

Question 2

The rate constant for a reaction at 40.0°C is exactly 3 times that at 20.0°C. Calculate the Arrhenius energy of activation for the reaction.

◦ 9.13 kJ/mol
◦ 5.04 kJ/mol
◦ 41.9 kJ/mol
◦ 3.00 kJ/mol
◦ None of these are correct.

heyhey123 · **Reply #1 on:** Mar 21, 2021

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