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How can the enthalpy change be determined for a reaction in an aqueous solution?
Utilizing a thermometer to measure the temperature change of the solution can be used (along with the mass of the reactant(s)) to determine the enthalpy change for an aqueous reaction, as long as the reaction is carried out in a calorimeter or similar apparatus so that no external heat is added or removed from the system.
What is the enthalpy of a reaction?
The amount of energy that is used or released as heat in a reaction.
What type of reaction is used in calorimetry?
Calorimetry typically involves measuring heat changes in a system during a chemical reaction, making it an example of an exothermic or endothermic reaction. These reactions release or absorb energy in the form of heat, which can be quantified to determine the heat capacity or enthalpy change of the reaction.
How is Hess's law used to measure enthalpy of a desire reaction?
... Intermediate equations with known enthalpies are added together.
How is hess law used to measure enthalpy of a desired reaction?
... Intermediate equations with known enthalpies are added together.
How is Hess's law used to measure enthalpy of a desired reaction?
... Intermediate equations with known enthalpies are added together.
What does the enthalpy of reaction measure?
The amount of energy that is used or released as heat in a reaction.
How is Hess's law used to measures enthalpy of a desired reaction?
... Intermediate equations with known enthalpies are added together.
How can one determine the molar enthalpy of a reaction?
To determine the molar enthalpy of a reaction, one can measure the heat released or absorbed during the reaction using a calorimeter. By knowing the amount of reactants used and the temperature change, the molar enthalpy can be calculated using the formula q mCT, where q is the heat exchanged, m is the mass of the substance, C is the specific heat capacity, and T is the temperature change.
What does enthalpy of reaction measure?
The amount of energy that is used or released as heat in a reaction.
What does the enthalpy reaction measures?
The amount of energy that is used or released as heat in a reaction.
How can the enthalpy change be determined for a reaction in an aqueous solution?
Utilizing a thermometer to measure the temperature change of the solution can be used (along with the mass of the reactant(s)) to determine the enthalpy change for an aqueous reaction, as long as the reaction is carried out in a calorimeter or similar apparatus so that no external heat is added or removed from the system.
How is Hess's law used to measure enthalpy of desired reaction?
Hess's law is used to measure the enthalpy of a desired reaction by comparing it to a series of known reactions with known enthalpy values. By manipulating these known reactions and applying Hess's law, the overall enthalpy change for the desired reaction can be calculated. This allows for the determination of the enthalpy of the desired reaction indirectly, using information from related reactions.
If you need to reverse the following reaction in order for it to be an intermediate reaction in a Hess's law problem what would be the final value for the enthalpy of reaction you use for this in?
The final value for the enthalpy of the reverse reaction used in a Hess's law problem would simply be the negative of the original value of the enthalpy of the forward reaction. This is because reversing a reaction changes the sign of the enthalpy change.
If you need to multiply the following reaction by 2 to be an intermediate reaction in a Hess's law problem what would be the final value for the enthalpy of reaction you use for this intermediate reac?
If you need to multiply the reaction by 2, you must also multiply the enthalpy change by 2. The final value for the enthalpy of the reaction used for the intermediate reaction would be 2 times the original enthalpy value.
The instrument used to determine the volume changes in chemical reaction is known as?
For fluids, a buret is a good one.
What is the enthalpy of a reaction?
The amount of energy that is used or released as heat in a reaction.
