A particular reaction is overall endothermic but is observed to proceed rapidly at…
CHEMISTRY · Single correct · AP · Chemistry · Kinetics · Kinetics
Problem
A particular reaction is overall endothermic but is observed to proceed rapidly at room temperature. Which of the following best explains this observation?
(a) The products are at a lower energy than the reactants, so the reaction is thermodynamically favored and therefore fast
(b) Because the reaction has a large positive entropy change (ΔS>0), it is spontaneous and proceeds quickly despite being endothermic
(c) The activation energy for the rate-determining step is low, allowing many molecules to reach the transition state
(d) The reaction rate is independent of the activation energy and depends only on the overall enthalpy change