Question 24: The first-order reaction A -> Products has a half-life of 15.8 min at 30 C and 3.9 min at 90 C. Calculate the activation energy in kJ/mol to three significant figures. The activation energy of this reaction is Check kJ/mol Question 25: A reaction doubles in rate then the tempreature is increased from 35 C to 45 C. Calculate the activation energy in kJ/mol to three significant figures. Ea = Check kJ/mol Question 26: Factor(s) that influence the rate of a reaction but not the rate constant is(are) concentration of products temperature concentration of reactants Check

Question 24: The first-order reaction A -> Products has a half-life of 15.8 min at 30 C and 3.9 min at 90 C. Calculate the activation energy in kJ/mol to three significant figures. The activation energy of this reaction is Check kJ/mol Question 25: A reaction doubles in rate then the tempreature is increased from 35 C to 45 C. Calculate the activation energy in kJ/mol to three significant figures. Ea = Check kJ/mol Question 26: Factor(s) that influence the rate of a reaction but not the rate constant is(are) concentration of products temperature concentration of reactants Check

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter11: Chemical Kinetics

Section: Chapter Questions

Problem 11.46PAE: A substance undergoes first-order decomposition. After 40.0 min at 500°C, only 12.5% of the original...

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A substance undergoes first-order decomposition. After 40.0 min at 500°C, only 12.5% of the original sample remains. YYliat is the half-life of the decomposition? If the original sample weighed 243 g, how much would remain after 2.00 h?
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