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When enthalpy in a system increases what is the reaction considered to be?

When enthalpy in a system increases, the reaction is considered to be endothermic. This means that heat is being absorbed from the surroundings, resulting in an increase in the energy of the system.


Is enthalpy conserved in a closed system undergoing a chemical reaction?

Enthalpy is not conserved in a closed system undergoing a chemical reaction.


What happens to enthalpy when temperature is decreased?

When temperature is decreased, the enthalpy of a system usually decreases as well. This is because enthalpy is a measure of the energy stored within a system, and lowering the temperature generally leads to lower energy content in the system.


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.


What is the equation for calculating the change in enthalpy of a system during a chemical reaction?

The equation for calculating the change in enthalpy of a system during a chemical reaction is H H(products) - H(reactants), where H represents the change in enthalpy, H(products) is the enthalpy of the products, and H(reactants) is the enthalpy of the reactants.


Does the overall enthalpy change of a chemical reaction depend on the reaction pathway?

No, the overall enthalpy change of a chemical reaction is independent of the reaction pathway. This is because enthalpy is a state function, meaning it only depends on the initial and final states of the system, not on how the system reached those states.


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).


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 is a correct description of the enthalpy of a reaction?

The enthalpy of a reaction does not depend on the intermediate reactions.


What is the sign of the enthalpy change for an endothermic reaction?

Endothermic reaction: In an endothermic reaction, the products are higher in energy than the reactants. Therefore, the change in enthalpy is positive, and heat is absorbed from the surroundings by the reaction therefore enthalpy change show positive sign in a endothermic reaction..


What is the enthalpy of a reaction?

The amount of energy that is used or released as heat in a reaction.


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.