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A thermochemical equation shows the amount of heat given out or taken in when the reaction occurs.

CH4 + 2O2 = CO2 +2H2O, deltaH = -890 kJ/mol

Note delta H is negative when heat is given out, exothermic and +ve when endothermic.

Sorry can't do delta symbol - its a triangle!

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How is thermochemical equation different from a balanced chemical equation?

A thermochemical equation includes information about the energy changes associated with a chemical reaction, such as enthalpy changes. A balanced chemical equation shows the reactants and products involved in a chemical reaction in their correct proportions. While a balanced chemical equation gives the stoichiometry of the reaction, a thermochemical equation provides additional information about the heat flow during the reaction.


What is the balanced thermochemical equation for SO2?

1/8 S8 + O2 --> SO2 , delta H degree f = -296.9 kJ


What is the difference between a thermochemical equation and a traditional chemical equation?

A thermochemical equation includes the enthalpy change of a reaction, whereas a traditional chemical equation only shows the reactants and products involved in a reaction without considering energy changes. Thermochemical equations provide information about the heat absorbed or released during a reaction, while traditional chemical equations focus on the chemical identities of the species involved.


Why it is necessary to mention physical states of reactants and products in thermochemical equation?

Including the physical states of reactants and products in a thermochemical equation is important because it provides additional information about the conditions under which the reaction occurs. The physical state can impact the enthalpy change of the reaction, as different phases have different enthalpies of formation. It helps to ensure that the reaction is balanced and allows for a more accurate determination of the heat transferred in the reaction.


The change in energy represented by a thermochemical equation is always?

The change in energy represented by a thermochemical equation is always given in units of energy, typically kilojoules (kJ) or kilocalories (kcal), and can be either exothermic (releasing heat) or endothermic (absorbing heat).

Related Questions

How is thermochemical equation different from a balanced chemical equation?

A thermochemical equation includes information about the energy changes associated with a chemical reaction, such as enthalpy changes. A balanced chemical equation shows the reactants and products involved in a chemical reaction in their correct proportions. While a balanced chemical equation gives the stoichiometry of the reaction, a thermochemical equation provides additional information about the heat flow during the reaction.


What information is given in a thermochemical equation?

thermochemical equations show the accompanying heat of reaction at constant pressure


What important information does thermochemical equation have that a regular balanced equations does not?

A thermochemical equation shows the amount of heat given out or taken in when the reaction occurs. CH4 + 2O2 = CO2 +2H2O, deltaH = -890 kJ/mol Note delta H is negative when heat is given out, exothermic and +ve when endothermic. Sorry can't do delta symbol - its a triangle!


What is the balanced thermochemical equation for SO2?

1/8 S8 + O2 --> SO2 , delta H degree f = -296.9 kJ


What is the difference between a thermochemical equation and a traditional chemical equation?

A thermochemical equation includes the enthalpy change of a reaction, whereas a traditional chemical equation only shows the reactants and products involved in a reaction without considering energy changes. Thermochemical equations provide information about the heat absorbed or released during a reaction, while traditional chemical equations focus on the chemical identities of the species involved.


Why it is necessary to mention physical states of reactants and products in thermochemical equation?

Including the physical states of reactants and products in a thermochemical equation is important because it provides additional information about the conditions under which the reaction occurs. The physical state can impact the enthalpy change of the reaction, as different phases have different enthalpies of formation. It helps to ensure that the reaction is balanced and allows for a more accurate determination of the heat transferred in the reaction.


Why is it important to keep balance in an equation?

Because if it is not balanced it is not a true equation.


What type of reaction is shown in this thermochemical equation A plus B plus Heat -- C plus D?

The reaction shown in the thermochemical equation is an exothermic reaction. This is because heat is a reactant (on the left side of the equation) and is released during the reaction.


The change in energy represented by a thermochemical equation is always?

The change in energy represented by a thermochemical equation is always given in units of energy, typically kilojoules (kJ) or kilocalories (kcal), and can be either exothermic (releasing heat) or endothermic (absorbing heat).


What is the thermochemical equation for endothermic changes?

A + B + Heat → C, ΔH > 0


What information In a balanced chemical equation shows how many moles of a reactant are involved in the reactant?

In a balanced chemical equation the number of molecules or atoms are specified.


What information are conveyed by a balanced chemical reaction why is it necessary to balanced a chemical equation?

A balanced chemical equation conveys the correct molar ratios of reactants and products in a reaction. Balancing a chemical equation upholds the Law of Conservation of Mass, which states that matter cannot be created or destroyed.