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When does heat equal enthalpy in a chemical reaction?
Heat equals enthalpy in a chemical reaction when the reaction is carried out at constant pressure.
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.
How do you calculate the change in enthalpy for a chemical reaction?
To calculate the change in enthalpy for a chemical reaction, subtract the sum of the enthalpies of the reactants from the sum of the enthalpies of the products. This difference represents the change in enthalpy for the reaction.
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 are the potential consequences of a negative change in enthalpy in a chemical reaction?
A negative change in enthalpy in a chemical reaction can lead to the release of heat energy. This can result in temperature increases, potential hazards like fires or explosions, and changes in the physical properties of substances involved in the reaction.
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.
When does heat equal enthalpy in a chemical reaction?
Heat equals enthalpy in a chemical reaction when the reaction is carried out at constant pressure.
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.
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.
Is enthalpy conserved in a closed system undergoing a chemical reaction?
Enthalpy is not conserved in a closed system undergoing a chemical reaction.
How do you calculate the change in enthalpy for a chemical reaction?
To calculate the change in enthalpy for a chemical reaction, subtract the sum of the enthalpies of the reactants from the sum of the enthalpies of the products. This difference represents the change in enthalpy for the reaction.
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 are the potential consequences of a negative change in enthalpy in a chemical reaction?
A negative change in enthalpy in a chemical reaction can lead to the release of heat energy. This can result in temperature increases, potential hazards like fires or explosions, and changes in the physical properties of substances involved in the reaction.
How to calculate the change in enthalpy during a chemical reaction?
To calculate the change in enthalpy during a chemical reaction, subtract the sum of the enthalpies of the reactants from the sum of the enthalpies of the products. This difference represents the change in enthalpy for the reaction.
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).
