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Is evaporation an exothermic or endothermic change why?

Is evaporation an exothermic or endothermic change why?

Evaporation is an endothermic reaction because the liquid molecules must absorb heat in order to transform into gas molecules.

Why is condensation exothermic?

Enthalpy and Phase Changes At constant pressure, enthalpy refers to changes in heat. An exothermic processes involves a negative change in enthalpy, or a loss of heat. As water vapor condenses into liquid, it loses energy in the form of heat. Therefore, this process is exothermic.

Why is vaporization endothermic quizlet?

Vaporization is an endothermic process. That is, a substance must absorb energy in order to change from a liquid to a gas. .. BIG picture.. This amount of energy is the heat of vaporization for water.

Is vaporization an example of an endothermic reaction?

Endothermic Processes Evaporating liquid water. Converting frost to water vapor (melting, boiling, and evaporation, in general, are endothermic processes.

What is the main difference between evaporation and vaporization?

Difference Between Vaporization and Evaporation
Vaporization Evaporation
Vaporization is defined as the transitional phase of a compound or an element and it occurs during the boiling or sublimation process. Evaporation is nothing but a type of vaporization which mostly occurs at temperatures below the boiling point.

Is the vaporization of water endothermic?

It is important to remember that vaporization is an endothermic process as heat is removed from the liquid through boiling. the temperature of a liquid will remain constant at the boiling point until all of the liquid is vaporized.

Why does vaporization require more energy than melting?

Much more energy is required to change the state from a liquid to a gas than from a solid to a liquid. This is because of the large separation of the particles in the gas state. The values of the heats of fusion and vaporization are related to the strength of the intermolecular forces.

Is evaporation endothermic or exothermic quizlet?

Evaporation is an endothermic process. As a liquid is converted into a gas, the liquid absorbs heat. A puddle of water cools down as it evaporates.

Which chemical reaction is always endothermic in nature?

Option 2 is the correct answer: Decomposition reactions are always endothermic in nature. In a decomposition reaction, a chemical compound is broken into its constituent components. The process takes place through the breaking of bonds between the constituent atoms of the compound.