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· You are overly assuming that your reaction yield is 100%. In reality a perfect and full yield will never be taken in.
· You are assuming no other reactions are taken place - the impurities in the reaction?
· Assume the density of the dilute solutions is the same for water. = 1.0g/mL
· Assume the specific heat of the solutions is the same as that for water. = 4.184 J/goC
· Assume the solutions react in their stochiometric amounts.
· Assume there is no loss of heat to the surroundings.
During enthalpy calculations, it is assumed that the system is under constant pressure, so the change in enthalpy (∆H) is equal to the heat transferred at constant pressure. It is also assumed that the system is closed and the work done is only in the form of pressure-volume work. Additionally, it is assumed that the enthalpy change is independent of the path taken between initial and final states (it obeys Hess's Law).
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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 a correct description of the enthalpy of reaction?
The enthalpy of a chemical reaction is the change of heat during this reaction.
What is the enthalpy of a reaction?
The amount of energy that is used or released as heat in a reaction.
What is enthalpy of solution?
enthalpy is how many miles superman can travel in a day. Regards, Lois Lane
True or false The molar enthalpy values and fusion stay the same if you were to reverse the process?
True. The molar enthalpy values for fusion (also known as the enthalpy of fusion) are independent of the direction of the process. This means that the enthalpy change for melting a substance is equal in magnitude, but opposite in sign, to the enthalpy change for freezing the substance.
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 the description of the enthalpy of a 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 a correct description of the enthalpy of reaction?
The enthalpy of a chemical reaction is the change of heat during this reaction.
What is the difference between enthalpy change and enthalpy change per mole?
Enthalpy change is the total heat energy exchanged during a process, while enthalpy change per mole is the heat energy exchanged per mole of a substance during the same process. The enthalpy change per mole allows for comparison between different reactions on a per mole basis, making it a more useful measure when analyzing chemical reactions.
What is molar enthalpy change?
Molar enthalpy change, also known as molar enthalpy of reaction, is the amount of heat energy released or absorbed during a chemical reaction per mole of a substance. It is usually expressed in units of kJ/mol. The molar enthalpy change can be positive (endothermic) if heat is absorbed or negative (exothermic) if heat is released during the reaction.
What are the three factors that affect the time value calculations?
Principal amount, Assumed interest rate, Period of time.
Which civilization invented the first computer?
The Greeks are assumed to have invented the first known computer circa 100BC, a mechanical analog computer for astronomical calculations assumed to be used as a navigational aid on ships.
How do you use assumed in sentence?
The teacher assumed that I was cheating during the pop quiz
What does positive enthalpy mean?
Positive enthalpy means that energy is absorbed from the surroundings during a process. This usually indicates an endothermic reaction where heat is taken in. For example, when ice melts into water, it absorbs heat from its surroundings, resulting in a positive enthalpy change.
What is the value of the enthalpy change of the uncatalyzed reaction?
The enthalpy change of an uncatalyzed reaction is the heat energy absorbed or released during the reaction when no catalyst is present. This value can be determined by calculating the difference between the enthalpy of the products and the enthalpy of the reactants.
What describes how much energy is produced or used during a chemical change?
The enthalpy of reaction
