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What is the role of energy in chemical reactions?
Energy is required to break chemical bonds in reactant molecules in order to initiate a chemical reaction. This initial input of energy is called activation energy. In addition, energy is released or absorbed during a chemical reaction, which can result in changes in temperature.
The process by which food substances are chemically changed into simpler forms that can be absorbed is called?
The process by which food substances are chemically changed into simpler forms that can be absorbed is called digestion. This process involves the breakdown of complex molecules into smaller molecules that can be transported and utilized by the body for energy and nutrition.
When water is vapourisied energy is absorbed or released?
Energy is absorbed when water is vaporized. This is because the process of vaporization requires breaking the hydrogen bonds between water molecules, which requires energy input to overcome the intermolecular forces holding the liquid water together.
What is a reaction called in which heat energy is absorbed?
An endothermic reaction is one in which heat energy is absorbed from the surroundings. In these reactions, the products have more energy than the reactants. Examples include photosynthesis and the melting of ice.
How is light energy transferred into an object and converted into thermal energy?
Light energy is transferred into an object when photons from the light source are absorbed by the object's surface. The absorbed photons increase the kinetic energy of the object's molecules, causing them to vibrate and generate heat, which is thermal energy.
What is energy absorbed in stored in vaporous molecules called?
Latent heat
Where do the photons that are absorbed go when they are absorbed by the solution?
Photons absorbed by a solution "disappear" and the energy they brought with them is transferred into the solution. That energy appears in the "activity" of the atoms, molecules and/or ions in the solution. The kinetic energy of these particles will increase because of the added energy.
When light enters an object and does not come out again?
This is called absorption, where the light energy is absorbed by the object's molecules and converted into other forms of energy, such as heat. The absorbed light does not exit the object but instead contributes to the object's internal energy.
What is potential energy stored in the bonds of molecules called?
The name of the energy that holds atoms together in a molecule is called chemical bonds.
Does radiant energy produce heat energy when it strikes matter?
To the extent to which the energy is absorbed, yes. Reflectivity and color determine how much energy is absorbed, but no matter can reflect 100% of the energy striking it. Some will be absorbed by the molecules.
How heat is absorbed?
Physical objects absorb heat when the molecules of which they consist absorb energy and increase their velocity. Molecules are always moving, or vibrating in a lattice structure. They can absorb energy through physical collisions with molecules of another object or medium (air, water), or through direct absorption of radiant energy. In either case, the molecules then increase their velocity and the object of which they are a part are said to become hotter, having absorbed heat.
What is it called when absorbed light energy is released by matter?
Example for light energy is absorbed or released, Heat is released and absorbed, electrical energy absorbed or released...
What is the role of energy in chemical reactions?
Energy is required to break chemical bonds in reactant molecules in order to initiate a chemical reaction. This initial input of energy is called activation energy. In addition, energy is released or absorbed during a chemical reaction, which can result in changes in temperature.
Is energy absorbed during evaporation?
Yes, energy is absorbed during evaporation. This energy is required to break the bonds between liquid molecules and change them into vapor molecules. This process is endothermic because it absorbs heat from the surroundings.
When iodine goes from iodine to iodine gas in energy absorbed or released?
Energy is absorbed because the iodine is going from a liquid to a gas. This means that the iodine molecules are moving faster so they had to have absorbed more energy to do this.
The process by which food substances are chemically changed into simpler forms that can be absorbed is called?
The process by which food substances are chemically changed into simpler forms that can be absorbed is called digestion. This process involves the breakdown of complex molecules into smaller molecules that can be transported and utilized by the body for energy and nutrition.
Sun's energy is absorbed by what?
the suns energy is absorbed by the leaf to make food. this is called photosynthesis :)
