The meerkat or suricate Suricata suricatta is a small mammal and a member of the mongoose family. It inhabits all parts of the Kalahari Desert in Botswana and South Africa.A group of meerkats is called a mob, gang, or clan.he meerkat or suricate Suricata suricatta is a small mammal and a member of the mongoose family. It inhabits all parts of the Kalahari Desert in Botswana and South Africa.
Enthalpy of Formation. The (molar) enthalpy of formation is the heat released ( ) or absorbed ( ) in a chemical reaction at constant pressure when simple substances combine into a more complex substance. At standard conditions of pressure and temperature (1 atm and 298 K), it is denoted . For elements in their standard states, .
1 The change in enthalpy for a reaction can be calculated from the enthalpies of formation of the reactants and the products. 2  Elements in their standard states make no contribution to the enthalpy calculations for the reaction since the enthalpy of an element in its standard state is zero.ll elements 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. The formation reaction is a constant pressure and constant temperature process.