The activation energy diagram is drawn as a hill because there is a large amount of energy needed to form the unstable transition state (viewed as the upward slope on the diagram). The difference between this peak energy and the rectants' energy is the activation energy. When this state decomposes in to more stable products (which are more stable than the reactants), the energy of the molecules is lower, thus the downward slope after the peak.
Activation energy is the energy at the potential barrier between the two fields with low energy (at left and at right) representing the sum of energies of reactants and products; the reaction is possible if the activation energy can exceed this barrier. And in a graphic this is the pic of a hill.
It's used as an analogy. Chemical reactions all have an energy "threshold" to "get going." This "hill" must be overcome for the reaction to occur.
If your home is in the shadow of a hill for example, it will require more fuel to heat it.
The activated complex is the intermediate form of a simplechemical reaction. In the following simple chemical reaction:A + B ---> C + DA & B are reactants; C & D are products. The activated complex can be written as A-B like so:A + B --> A-B --> C+ DBasically it is the complex formed when A & B "collide" together. The energy of the system increases during this collision and if it exceeds the "activation" threshold, the reaction can occur (it doesn't have to occur however. think of A-B as the top of a hill...the reaction can proceed forward, down to C & D or go backwards to reform A & B...the hill represents the energy of the system). The activated complex is also known as the transition state, or intermediate state, since it must preceed product formation.
As the water moves lower, its Potential Energy is transformed into Kinetic Energy as its velocity increases. K.E. = 1/2 Mass x Velocity2 . The K.E. goes to zero when the motion of the water stops. The water then has a new value of Potential Energy based on its new elevation.
A hill is a hill and a mountain is a mountain(:
Any catalyst will make a chemical reaction easier or quicker to happen by lowering the activation energy. On a energy diagram, you will see a lower "hill" for activation energy, which corresponds to less energy required to begin the reaction.
If the activation energy of a reaction is high, then it requires a large amount of energy to initiate the reaction. The situation arising when a spontaneous reaction has a large activation energy is similar to rolling a ball over a hill. At first, energy must be expended to move the ball to the crest of the hill (or, in the case of a reaction, impart enough energy to the molecules so that their bonds can be sufficiently weakened). However, once the ball is at the top of the hill, it rolls down on its own. This is analogous to the reforming of chemical bonds, which releases energy. High activation energies are typical when a reaction involves molecules whose bonds are strong.
a hill over which the wagon is pushed. - novanet
Activation energy is the distance from the reactants to the top of the "hill."
This is the energy needed to get us from our starting point to the top of the hill would be the activation enery
For the substance(s) to react
Activation energy is the minimum amount of energy needed for the reactants to get converted to products. It can be supplied as heat energy, electrical energy, mechanical energy, and light energy.
Reducing activation energy allows chemical reactions in the cells of living things to occur at temperatures at which the cells can survive. Reducing activation energy is carried out by enzyme catalysts. The enzyme catalysts are not used up in the reaction, and can be used in subsequent chemical reactions.
A rock on top of a hill has potential energy, not kinetic energy. If it starts rolling down the hill then the potential energy transforms to kinetic energy.
i think a stepper hill has more kinetic energy
potential energy is an easy energy... just like kenetiic and activation energy some examples of potention energy is a person on top of a hill standing, getting ready to ski.... they have potential energy as they are not moving but are gettting ready to be involved with kenetic energy. also a match getting started...is potentiaal energy.
Potential energy is the energy stored in a rock before its fall from a hill.