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Either the change (which the delta refers to) of the height (which the h represents).

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10y ago

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When is q equal to delta h in a chemical reaction?

Q is equal to delta H in a chemical reaction when the reaction is at constant pressure and temperature.


What is delta h in the equation delta g delta h - t delta?

The change in enthalpy between products and reactants in a reaction


When does q equal delta h in a chemical reaction?

Q equals delta H in a chemical reaction when the reaction is at constant pressure and the temperature remains constant.


How is delta hf related to the delta h of the reaction?

The standard enthalpy change of a reaction (delta H) is related to the standard enthalpy of formation (delta Hf) of the products and reactants involved in the reaction by the equation: delta H = Σ(Products delta Hf) - Σ(Reactants delta Hf). This equation relates the enthalpy change of a reaction to the enthalpies of formation of the substances involved in the reaction.


How can one determine the delta H of a reaction?

To determine the delta H of a reaction, one can use calorimetry to measure the heat released or absorbed during the reaction. This involves measuring the temperature change of the reaction mixture and using it to calculate the heat exchanged. The delta H value represents the change in enthalpy of the reaction.


What does a negative delta H for a reaction suggest?

A negative delta H for a reaction suggests that the reaction is exothermic, meaning it releases heat to its surroundings. This implies that the products of the reaction have lower energy than the reactants.


What is the difference between delta H and delta E in a chemical reaction?

Delta H represents the change in enthalpy, which is the heat energy exchanged during a chemical reaction. Delta E represents the change in internal energy, which includes both the heat energy and work done in a reaction. In simpler terms, delta H focuses on heat transfer, while delta E considers both heat and work.


What is delta h in the equation delta g delta h - t delta s?

Delta H represents the change in enthalpy of a system. In the equation ΔG = ΔH - TΔS, it is the enthalpy change of the system. It indicates the heat absorbed or released during a reaction at constant pressure.


What is delta S in the equation delta G delta H - T delta S?

The change in enthalpy between products and reactants in a reaction


What does H of a reaction represent?

It represents the heat involved in a reaction.


Is qrxn delta h of reaction under the same pressure?

Yes, ( q_{rxn} ) (the heat of reaction) is equal to the change in enthalpy (( \Delta H )) of the reaction when measured at constant pressure. This is because, under constant pressure conditions, the heat exchanged in a reaction corresponds directly to the change in enthalpy. Thus, ( q_{rxn} = \Delta H ) at constant pressure.


How do you calculate delta H in chemistry?

To calculate delta H in chemistry, you subtract the enthalpy of the reactants from the enthalpy of the products in a chemical reaction. This difference represents the change in heat energy during the reaction.