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In most cases, it is thermal energy which activates chemical reactions. In the most easily observed example, we ignite a flammable substance by heating it to its ignition temperature (in the case of paper, 451oF). The hotter something is, the more thermal energy is available to activate a reaction.
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∙ 11y ago
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Why Energy activation decreases by increasing temperature?
It doesn't. Increasing temperature adds energy.
Why is it important to lower activation energy?
ITs important becayse enzymes allow chemical reactions to occur at the normal body temperature
What is the minimum amount of energy required for two substances to react?
The minimum amount of energy needed is called the "activiation energy". It varries depending on factors such as your reaction, temperature and several others.
What energy is the energy needed to start a reaction?
Activation Energy.
Is kinetic energy a source of activation energy?
Kinetic energy is active energy.
How do changed in temperature and activation energy compare in how they affect reaction rate?
Changes in temperature and activation energy have opposite effects on reaction rate.
Can a reaction have zero activation energy?
if a reaction is carried out at constant temperature to completion it will have a zero activation energy.
Why Energy activation decreases by increasing temperature?
It doesn't. Increasing temperature adds energy.
How do changes in temperature and activation energy compare in how they affect reaction rate Apex?
Changes in temperature and activation energy have opposite effects on reaction rate.
Why does increasing the temperature speed up the reaction?
It provides energy to overcome the activation energy.
How do changes in temperature and energy influence chemical changes?
The reaction rate is dependent on temperature (increasing the temperature the reaction rate increase) and activation energy.
How do changes in energy and temperature influence chemical changes?
The reaction rate is dependent on temperature (increasing the temperature the reaction rate increase) and activation energy.
What happens to the reaction rate if the activation energy gets smaller?
When activation energy is lowered (e.g. by using a catalyst) the reaction rate increases (at the same temperature)
When is activation energy the same for forward and reverse reactions?
the activation energy of a reversible reaction is not thesame for the foreward and backward reactios
Why is it important to lower activation energy?
ITs important becayse enzymes allow chemical reactions to occur at the normal body temperature
How does activation energy affect chemical reactions?
The Arrhenius equation is: Ea = -RT ln(k/A) where Ea - activation energy R - universal gas constant ln - logarithm k - speed constant T - temperature in kelvins
What is the minimum amount of energy needed to start a chemical reaction?
activation energy ( I know it is right because it is in my science book)
