Enthalpy flashcards

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what is enthalpy? Enthalpy change is a change in energy at constant pressure.
How do we calculate enthalpy? The energy of a reaction, either absorbed or released, can be calculated by E = mcDT , where c is the specific heat capacity of the reaction. The enthalpy for the reaction in Jmol–1
what is positive enthalpy? positive enthalpy indicates an endothermic reaction
what is negative enthalpy? negative enthalpy indicates an exothermic reaction
what is standard enthalpy? Standard enthalpy is defined as when a reaction happens under standard condition i.e pressure 1atm(760 torr),and Concentration 1.0 M
what is the Standard enthalpy of combustion? Standard enthalpy of combustion is the enthalpy change when one mole of a substance in its standard state is completely burned in air to produce the products in their standard states
Describe the Standard enthalpy of neutralization? The Standard enthalpy of neutralisation is the enthalpy change where one mole of water is produced when an acid neutralizes an alkali under standard condition
Describe the Standard enthalpy of formation? The Standard enthalpy of formation is the enthalpy change where one mole of a substance in its standard state is formed from its constituent elements in their standard states under standard conditions
what is hess's Law? Hess’ Law states that the enthalpy change of a reaction depends upon the initial and final states of the reaction and it is independent of the route the reaction takes
what is Bond dissociation enthalpy? Bond dissociation enthalpy is the enthalpy change where one mole of a substance, in gaseous state, is split into individual gaseous atoms.
Describe the heat of reaction? The Heat of reaction is equal to the sum of the standard enthalpy of formation of products minus the sum of their reactants.

what is enthalpy?

How do we calculate enthalpy?

what is positive enthalpy?

what is negative enthalpy?

what is standard enthalpy?

what is the Standard enthalpy of combustion?

Describe the Standard enthalpy of neutralization?

Describe the Standard enthalpy of formation?

what is hess's Law?

what is Bond dissociation enthalpy?

Describe the heat of reaction?

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