L3: Enthalpy Flashcards
state function that transferred heat between the system and surroundings at constant pressure. The
Enthalpy (H)
The enthalpy of a reaction also known as
heat of reaction
The ________, is equal to the difference between the enthalpy of the products and reactants.
change in enthalpy (🔼H)
It depends also in the amount of reactants consumed in the process and on the physical states of both reactants and products
change in enthalpy (🔼H)
Formula of change in enthalpy
ΔΗrxn - ΣΗproducts - ΣHreactants
Change in enthalpy
at constant pressure and temperature,
ΔΗ = Q
Endo
Exo
Equation
A+B+Heat->C
A+B -> C + heat
A __________ is a balanced stoichiometric chemical equation that includes the amount of energy, in the form of heat, which is transferred in the reaction.
thermochemical equation
____ usually expressed in kilojoules (kJ) or kilocalories (kcal). The amount of heat either absorbed or released in a reaction is called the _____
Heat, heat flow.