the enthelpies of elements in their Standard states are taken as zero, the enthalpy of formation of a compound?

the enthelpies of elements in their Standard states are taken as zero,

1.	the enthelpies of elements in their Standard states are taken as zero, the enthalpy of formation of a compound?
Answer» MENTS in their standard STATES (oxygen gas, solid carbon in the form of GRAPHITE, etc.) have a standard enthalpy of FORMATION of zero, as there is no change INVOLVED in their formation.