activation energy: The minimum amount of energy that molecules must have in order for a reaction to occur upon collision. Reactant Concentrations. Raising the concentrations of reactants makes the reaction happen at a faster rate. Surface Area. Pressure. Temperature. Presence or Absence of a Catalyst. Nature of the Reactants. Click to see full answer. Accordingly, what is required for a chemical reaction to occur?In order for a chemical reaction to take place, the reactants must collide. The collision between the molecules in a chemical reaction provides the kinetic energy needed to break the necessary bonds so that new bonds can be formed.Likewise, what determines whether a reaction will occur? You can determine whether a reaction is spontaneous by calculating the standard Gibbs free energy of reaction, the difference in Gibbs free energy between pure products and pure reactants in their standard states. If the free energy of reaction is negative, the reaction is thermodynamically spontaneous as written. Also question is, what are 3 things that must happen in order for a chemical reaction to occur? So, the three conditions for a chemical reaction to occur are: Temperature should be above absolute zero. Chemical reactants must be in close, proximate, physical contact. The reaction must have negatie free energy (exergonic) and the system must provide it sufficient energy to overcome the Activation Energy Barrier.What triggers a chemical reaction?Collisions. When two molecules collide with the right orientation and sufficient force, a chemical reaction may result. Not all collisions cause reactions, however; the atoms or molecules must be able to recombine to form new compounds.
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