ChemistryMediumHigh School (11–12)Chemical Kinetics › Temperature, the Arrhenius Equation and Collision TheoryNEETAPA-LevelIB
Created by StemPy LabStatements about a catalyst: 1. It lowers the activation energy of the forward and of the reverse reaction. 2. It changes the enthalpy change of the reaction. 3. It does not change the equilibrium constant. 4. It can start a reaction that has a positive . How many of these are correct?
← All Quizzes
← Assertion (A): The rate of a reaction may double for a rise of 10 K. Reason (R): The number of molecules with energy above the activation energy rises sharply with temperature.A graph of potential energy for an endothermic reaction puts the reactants at 0, the activated complex at +118 kJ/mol and the products at +27 kJ/mol. The reverse reaction needs a minimum energy of how much? →
Discussion (0)
Log in to join the discussion.
Loading…