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How does activation energy affect the length of a reaction?
as activation energy decreases, reaction will finish faster (length of reaction decreases)
What Explain what happens to the average kinetic energy, thermal energy, and temperature of a substance when the particles in the substance slow down.?
The particles in a substance slow down when the average kinetic energy of the particles decreases. As the average kinetic energy decreases, the internal energy decreases, and so the thermal energy decreases. As the thermal energy of the substance decreases, the temperature decreases.
What can decreases the activation energy needed to start a reaction?
a catalyst
What is a non example of a activation energy?
waterfirelove
Activation energy is the minimum energy required to do what?
For the substance(s) to react
What happens to the rate constant as activation energy increase?
The rate constant decreases.
Molecules in a substance slow down when a substance is?
Molecules in a substance slow down when a substance is cooled. Temperature is the measure of average kinetic energy of particles. Kinetic energy is the energy of motion. So when temperature decreases, the average kinetic energy decreases, so the energy of motion decreases, and the molecule slows down.
What is the relationship between temperature and the activation energy on a graph?
On a graph, the relationship between temperature and activation energy is typically shown as an inverse relationship. As temperature increases, the activation energy required for a reaction decreases. This is because higher temperatures provide more energy to molecules, making it easier for them to overcome the activation energy barrier and react.
What happens to a rate constant as activation energy increases?
As activation energy increases, the rate constant typically decreases. This is because a higher activation energy means that fewer molecules have sufficient energy to overcome the energy barrier for the reaction, resulting in a slower reaction rate. According to the Arrhenius equation, the rate constant is inversely related to the activation energy, highlighting this relationship.
How does activation energy determine if a reaction will release or absorb energy?
Activation energy is the energy required to start a chemical reaction. If the activation energy is higher than the energy released by the reaction, the reaction will absorb energy and be endothermic. If the activation energy is lower than the energy released by the reaction, the reaction will release energy and be exothermic.
What is the relationship between temperature and the activation energy required for a chemical reaction, as shown in a graph?
As temperature increases, the activation energy required for a chemical reaction decreases. This relationship is typically shown on a graph where the activation energy is plotted on the y-axis and temperature is plotted on the x-axis.
Why Energy activation decreases by increasing temperature?
Increasing temperature provides molecules with more kinetic energy, increasing the likelihood of successful collisions to activate a reaction without the need for external energy input. As a result, the activation energy required decreases at higher temperatures, making the reaction more favorable and faster.
