Please answer Quickly !! Define enthotherimic and exothermic reactions ?

Question

short breif paragraph please

Answer 1

Exothermic means giving off heat. Endothermic means absorbing heat.

Answer 2

an exothermic reaction is one that releases heat . It is the opposite of an endothermic reaction. In an exothermic reaction, the total energy absorbed in bond breaking is less than the total energy released in bond making.


In Chemistry an endothermic reaction is one in which the reactants have less energy than the products, and thus a net input of energy, usually in the form of heat, is required. Endothermic reactions are often described as reactions that "feel cold", and contrast with exothermic reactions, in which heat is released.

Answer 3

From wikipedia:
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Overview
Endothermic refers to a transformation in which a system receives heat from the surroundings:

Q > 0
When the transformation occurs at constant pressure:

∆H > 0
and constant volume:

∆U > 0
If the surroundings do not supply heat (e.g., when the system is adiabatic), an endothermic transformation leads to a drop in the temperature of the system.


Endothermic processes
Some examples of endothermic processes are

Cooking food
Melting of ice
Depressurising a pressure can
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Overview
Exothermic refers to a transformation in which a system releases heat to the surroundings:

Q < 0
When the transformation occurs at constant pressure:

∆H < 0
and constant volume:

∆U < 0
In an adiabatic system (i.e. a system that does not give off heat to the surroundings), an exothermic process results in an increase in temperature.[1]


Exothermic processes
Some examples of exothermic processes are:

Freezing of water
Combustion
Respiration

Answer 4

en- meaning in whatever the rest of the word means, exo meaning outside...

Answer 5

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