1.4 energetics

Cards (7)

define specific heat capacity
the energy required to raise 1g of substance by 1K without a change of state
define enthalpy of formation
the enthalpy change when one mole of a substance is produced from its elements under standard condition
define enthalpy of combustion
the enthalpy change when one mole of a substance is burned completely in oxygen under standard conditions
define standard molar enthalpy of formation 
when one mol of a compound is formed from its constituent elements in their standard states
define hess law
the enthalpy change for a reaction is independent of the route
enthalpy change of combustion formula 
eh = c x m x t
enthalpy change of combustion is less exothermic than formation because of what?
incomplete combustion
heat loss