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Heat equals enthalpy in a chemical reaction when the reaction is carried out at constant pressure.

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5mo ago

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Related Questions

When does the change in enthalpy equal heat in a chemical reaction?

The change in enthalpy equals the heat in a chemical reaction when the reaction occurs at constant pressure.


What is the description of the enthalpy of a reaction?

The enthalpy of a chemical reaction is the change of heat during this reaction.


What is the description of the enthalpy of reaction?

The enthalpy of a chemical reaction is the change of heat during this reaction.


What is a correct description of the enthalpy of reaction?

The enthalpy of a chemical reaction is the change of heat during this reaction.


What is a correct description of enthalpy of a reaction?

The enthalpy of a chemical reaction is the change of heat during this reaction.


What is the difference between the heat of reaction and enthalpy in a chemical reaction?

The heat of reaction is the amount of heat released or absorbed during a chemical reaction, while enthalpy is the total heat content of a system. Enthalpy includes the heat of reaction as well as any changes in pressure and volume.


What does the enthaply of reaction measure?

The enthalpy of reaction measures the amount of heat absorbed or released during a chemical reaction at constant pressure. It indicates whether a reaction is exothermic (heat is released) or endothermic (heat is absorbed).


Is the heat of reaction the same as enthalpy?

No, the heat of reaction is not the same as enthalpy. Enthalpy is a measure of the total heat energy in a system, while the heat of reaction specifically refers to the heat energy released or absorbed during a chemical reaction.


How can enthalpy help in determining the heat transfer of a chemical reaction?

Enthalpy is a measure of the heat energy in a chemical reaction. By calculating the change in enthalpy during a reaction, scientists can determine the amount of heat transferred. This helps in understanding the energy changes involved in the reaction and predicting its heat effects.


What does a negative enthalpy indicate in a chemical reaction?

A negative enthalpy in a chemical reaction indicates that the reaction is exothermic, meaning it releases heat energy to the surroundings.


What is the difference between enthalpy and heat of reaction in a chemical reaction?

Enthalpy is the total heat content of a system, including both heat absorbed and released during a reaction. Heat of reaction specifically refers to the heat released or absorbed when a specific chemical reaction occurs.


What is the difference between the enthalpy of the products and the enthalpy of the reactants in a chemical reaction?

The difference between the enthalpy of the products and the enthalpy of the reactants in a chemical reaction is known as the change in enthalpy, or H. This value represents the amount of heat energy either absorbed or released during the reaction. If H is positive, the reaction is endothermic and absorbs heat. If H is negative, the reaction is exothermic and releases heat.