What is activation energy?
485922
the minimum amount of energy required to start a reaction
952467
Energy (ATP, from the food we eat) in our body is used to create chemical energy so our body can move and proceed with its daily life.\n________\n\nAll I can think of :(  Hope this helps! :) :)
240305
It is important to remember that even though the equations may look the same, all chemicals act differently, in some way, than one another.  The reason the activation energies are different is because of the different charges relating to the ions.  It takes more energy to break apart the H2SO4 because it's bonds are stronger(lattice energy) than those of HCl, thus raising the activation energy for that specific reaction.
418395
A catalyst lowers the activation energy required for the reaction to take place.
673440
The activation energy of a reaction is different for every reaction and is totaly independant of wether the reaction is exothermic or endothermic. For any reaction to proceed the minimum energy must be equal to or higher than the activation energy.\n\nNow where your question can come in is, i think, is if the reaction is reversible. In one direction the reaction will be exothermic and in the opposite direction the reaction will be endothermic. For both the forward and backward reactions the activation energy is the same and there is nothing that can be done to change that.
141922
Chemical energy is the amount of heat released from a chemical reaction to do work.  Since not all heat will be utilized, you will have a loss of heat which will lower the efficiency of the process. \n\nIn closer detail to a chemical reaction, studies are made on different reactions to determine the amount of energy released.  One of the best tools to determine this is to look at an Energy vs. time graph.  The barrier to overcome for a chemical reaction to come to completion would be the activation energy (slope to peak); this is the amount needed for a chemical reaction to proceed.  Once the requirements are met, the release of energy (negative slope of the same curve from apex), the difference between starting energy (baseline from beginning before additional energy was applied) and ending energy (the bottom of the slope where m = dE/dt = 0).  If the difference of energy is positive, the reaction is endothermic.  If negative, the reaction is said to be exothermic.  Exothermic reactions are used in many applications to power devices such as steam engines, and gasoline motors which are about 20-30% efficient at most.  Rockets, on the other hand are really inefficient yet they are our main means of propelling stuff into space.\n\nOn the other hand, more subtle means of chemical energy exists in fuel cells and batteries; they power devices through the transfer of electrons and a porous media of some sort connecting the two cells.  Although it is an alternative that to mixing two substances and sparking an explosion.\n\nIf a material spontaneously combusts, it is said that the requirements of meeting the activation energy has been met; look at the reaction of Na(s) with O2(g).  Sodium most readily gives up an electron which the oxygen will take.  Oxygen is more electronegative (It loves electrons more than Sodium).  Oxygen will prefer to take electrons from Sodium as opposed from it's own because Sodium would feel more satisfied with having one less electron.  Oxygen - Oxygen bonding on the other hand would mean that oxygen would have to share 4 electrons to feel satisfied (remember, octet rule - higher stability with complete s, p, d, orbitals filled).  So what does this mean?\n\nChemical energy is due to the release of energy due to trying to BEST satisfy the conditions of the electron-nucleus relationship.  If the nucleus requires 10 electrons, they are going to be nearby but in a highly defined probable region where they will linger to make the nucleus feel happy.  If another buddy (compound) comes along and offers the POTENTIAL for a better and more STABLE life, the substance will jump on it, thus reducing the potential energy of the whole substance.\n\nAlthough, look at this you would think chemical energy would even come from nuclear power plants.  But, don't let it fool you.  Nuclear power is a different beast itself.  It does not arise from chemical reactions but from decay of nucleus to produce energy.
99416
Potential energy is the sum total of all the energy that CAN BE derived.  Think of it as stored energy waiting to be released.\n\nKinetic energy is the total energy being derived at some instant in time. Unlike potential energy, kinetic energy is determined by mass AND velocity.
230115
Magnetic energy is the energy associated with a magnetic field. Energy can be stored (like energy stored in a stretched rubber band.) The energy stored in a magnetic field is called magnetic energy. It is produced by the flow of an electric current through an inductor (like a coiled wire). It can be used to do work.
846365
Thermal energy IS heat.
619518
Every atomic fission releases excess energy in a variety of forms.  That excess energy is trapped by the reactor in the form of heat, which is used to generate steam to drive turbines which generate electricity.
29543
Thermal energy is kinetic energy due to disordered motions and vibrations of microscopic particles such as molecules and atoms.
148771
the answer you are looking for is n the words that you used ( force ) a push is a force , and so are many other ways that energy is transformed in to other forms of work ,force is kind of a name used to tell you what kind of transformation the energy is taking , or thats the way it was explained to me in school many moons ago
1149582
Catalyst works by lowering down the activation energy of the reaction. Activation energy is the minimum amount of energy which the reactants should have in order to react & result into products. The catalyt reacts with the reactants to form INTERMIDIATE products which require lower activation energy & easily result into products.The catalyst usually have large surface areas so the reactants are easily ADSORBED on its surface.The bonds between the reactant molecules break & form new products which are realeased from the catalust's surface.
283905
Kinetic Energy describes the amount of energy an object has by virtue of it hasving some non-zero mass and traveling at some speed.\nKE= 1/2 mv^2\n\nPotential Energy describes the energy that could be gained by that object if it was not at that potential.  It is not really accurate to say that potential energy is energy at rest since it is very possible for moving objects to have potential energy.\nA good example would be a rock sitting on a cliff.  That rock has some potential gravitiational energy since it is sitting some height above the ground (the bottom of the cliff).  The potential energy equals the amount of energy needed to put that rock up there in the first place and the amount of energy which could be gained if the rock falls down from the cliff.  As the rock is falling, before it hits the ground, the rock has some fraction of its potential energy converted into kinetic, in other words it has both at the same time.\nThere are many forms of potential energy, gravitational potential energy being the most commonly described.\ngravitational PE = mgh
837367
Kinetic Energy\nKinetic energy is the energy of motion. An object which has motion - whether it be vertical or horizontal motion - has kinetic energy. There are many forms of kinetic energy - vibrational (the energy due to vibrational motion), rotational (the energy due to rotational motion), and translational (the energy due to motion from one location to another). To keep matters simple, we will focus upon translational kinetic energy. The amount of translational kinetic energy (from here on, the phrase kinetic energy will refer to translational kinetic energy) which an object has depends upon two variables: the mass (m) of the object and the speed (v) of the object. The following equation is used to represent the kinetic energy (KE) of an object.\n                     \nke=1/2*m*v^2\n\nwhere m = mass of object\n\nv = speed of object
511334
The change in morphology and behaviour of lymphocytes exposed to a mitogen or to an antigen to which they have been primed. The result is the production of lymphoblasts, cells that are actively engaged in protein synthesis and that divide to form effector populations. Should not be confused with transformation of the type associated with oncogenic viruses, and "activation" is therefore perhaps a better term.
743400
Enzymes accelerate the rate of the reaction. When the enzymes are heated, they reach their optimum point. They are activated and thus produce a faster rate of reaction.