0
What else can I help you with?
will a catalyst change the enthalpy of a reaction in a chemical reaction?
No, a catalyst will not change reaction enthalpy. If it does so, then it is NOT a catalyst but a reactant in stead!
What must the temperature be for the gas to remain at a constant pressure?
"Constant pressure" means the pressure must not change.
Heat of reaction for a chemical reaction symbol?
The symbol used to represent the heat of reaction in a chemical equation is ΔH. It indicates the enthalpy change of the reaction, which is the heat exchanged during a chemical reaction at constant pressure.
How does the presence of a catalyst affect the enthalpy change of a reaction?
The presence of a catalyst affect the enthalpy change of a reaction is that catalysts do not alter the enthalpy change of a reaction. Catalysts only change the activation energy which starts the reaction.
What other name is given to the heat of a reaction?
Enthalpy is another term used to refer to the heat of a reaction. It represents the total heat content of a system at constant pressure.
What special name is given to a heat change at constant pressure?
A heat change at constant pressure is called enthalpy change, often denoted as ΔH. It represents the change in total heat content of a system during a process occurring at constant pressure.
What is the enthalpy equation used to calculate the change in heat energy of a system at constant pressure?
The enthalpy equation used to calculate the change in heat energy of a system at constant pressure is H q PV, where H is the change in enthalpy, q is the heat added or removed from the system, P is the pressure, and V is the change in volume.
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 relationship between constant pressure enthalpy and the changes in a system's energy content during a process?
Constant pressure enthalpy is a measure of the energy content of a system at a constant pressure. During a process, changes in the system's energy content are reflected in the enthalpy changes. The relationship between constant pressure enthalpy and changes in energy content is that they are directly related - as the enthalpy changes, so does the energy content of the system.
When is heat of a reaction equal to the enthalpy change of the same reaction?
I'm pretty sure its when the pressure remains constant. When the pressure is constant: q=delta U + P delta V The equation for delta H is: delta H = delta U +P delta V Therefore, when pressure is constant: delta H = q I think...
Heat exchange in chemical reactions is due to a change in what?
Enthalpy-The heat added to or loss by a system at constant pressure
Choose the name and symbol for internal heat of a system at constant pressure?
The name for the internal heat of a system at constant pressure is enthalpy, symbolized as "H."
Is the heat content of a system at a constant pressure?
Yes it is possible, for example when water freezes there is a point when the temperature remains constant however energy is released as the water condenses.
What is true of the enthalpy reaction?
The enthalpy of a reaction is a measure of the heat energy exchanged with the surroundings at constant pressure. A negative enthalpy change indicates an exothermic reaction, where heat is released. A positive enthalpy change indicates an endothermic reaction, where heat is absorbed.
Which is true of the enthalpy of a reaction?
Its value does not depend on which reactions are added.
What is the best definition of the enthalpy of a reaction?
The enthalpy of a reaction is the heat change that occurs during a chemical reaction at constant pressure. It represents the difference in energy between the products and reactants in the reaction.
How can one determine the enthalpy of a system?
The enthalpy of a system can be determined by measuring the heat exchanged during a process at constant pressure. This can be done using a calorimeter to measure the temperature change and applying the equation H q, where H is the enthalpy change and q is the heat exchanged.
