Chemical reactions occur when molecules or atoms collide in a way that the bonds between atoms break and new bonds form. Breaking the bonds of the reactants requires energy, whereas bond formation releases energy. Select the true statements regarding energy changes during a reaction. Increasing the concentration of reactants increases the number of collisions, and the reaction goes faster. If the heat of reaction, Î”đť» , is positive, the energy of the products is lower than the energy of the reactants and the reaction is endothermic. When the activation energy is low, the reaction rate is slow. The activation energy, đť¸a , of the forward reaction is the difference between the energy of the products and the energy of the transition state. Decreasing the temperature decreases the kinetic energy of the reactants, and the reaction goes more slowly. Reactants must collide with proper orientation and with energy greater than or equal to the activation energy for a reaction to occur. The energy of a collision between atoms or molecules must be greater than or equal to the activation energy, đť¸a , for bonds to be broken.

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nadiskwan3257 nadiskwan3257

26-11-2018
Chemistry

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Chemical reactions occur when molecules or atoms collide in a way that the bonds between atoms break and new bonds form. Breaking the bonds of the reactants requires energy, whereas bond formation releases energy. Select the true statements regarding energy changes during a reaction. Increasing the concentration of reactants increases the number of collisions, and the reaction goes faster. If the heat of reaction, Î”đť» , is positive, the energy of the products is lower than the energy of the reactants and the reaction is endothermic. When the activation energy is low, the reaction rate is slow. The activation energy, đť¸a , of the forward reaction is the difference between the energy of the products and the energy of the transition state. Decreasing the temperature decreases the kinetic energy of the reactants, and the reaction goes more slowly. Reactants must collide with proper orientation and with energy greater than or equal to the activation energy for a reaction to occur. The energy of a collision between atoms or molecules must be greater than or equal to the activation energy, đť¸a , for bonds to be broken.

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mahima6824soni mahima6824soni · Answer 1 · 2022-02-14T20:16:13+01:00

The correct statements regarding energy changes during a reaction are:

C. When the activation energy is low, the reaction rate is slow.

E. Decreasing the temperature decreases the kinetic energy of the reactants, and the reaction goes more slowly.

F. Reactants must collide with proper orientation and with energy greater than or equal to the activation energy for a reaction to occur.

G. The energy of a collision between atoms or molecules must be greater than or equal to the activation energy, for bonds to be broken.

What is energy change?

The difference in the amounts of stored chemical energy between the products and the reactants causes the energy change in a chemical reaction.

The enthalpy of a system is the amount of chemical energy it has stored or the amount of heat it contains.

Thus, the correct options are C, E, F, and G.

Learn more about energy change, here:

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