All the exothermic reactions produces heat energy whereas all endothermic reactions absorb heat from the surrounding.
For example burning of a coal is a exothermic process and melting of a ice is a endothermic process.
Exothermic reactions produce energy in the form of heat.
Exothermic Reaction.
The 2 ways to increase chemical reaction rate are applying heat or a catalyst. So it is A : Applying heat. ;)
The food is first broken down into its simplest forms. The cellular organelle know as the mitochondria receives it and breaks it down even more producing ATP. ATP is the main energy source for the cell.
The energy provided by absorbing light can substitute for the heat energy that usually accelerates chemical reactions. More fundamentally, any endothermic chemical reaction can occur because an increase in entropy compensates for any heat absorbed by the reaction to make the free energy change negative.
Whether a reaction is exothermic or endothermic is not dependent upon the type of bond. Exothermic reactions can involve ionic or covalent bonds. When an ionic substance dissolves, it is often an exothermic reaction, as are many reactions involving covalent bonds, such as combustion.
exothermic reaction
The effect of heat on a chemical reaction will depend on whether the chemical reaction is exothermic (producing heat), or endothermic (requiring an input of heat). If the reaction is endothermic, then adding heat will increase the speed, but the opposite is true for an exothermic reaction.
This the heat released during a chemical reaction.
when we heat the salt there chemical reaction is takes place
Yes. A chemical reaction which absorbs heat during the reaction. The opposite to exothermic which releases heat during the reaction.
Producing heat is caused by a chemical process which results in physical changes. The cause is chemical. The effect is physical. :) :D
Yes, the signs of a chemical reaction are: gas, precipitation, heat, color change
Heat?
If the reaction is endothermic in nature then heat should be added to it,otherwise all chemical reaction neddn't heat always.
can heat add energy to the chemical reaction in a glwo stick
it is not a chemical reaction. It is a nuclear reaction and it is called fusion.
Chemical.