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, .
This means that the change in enthalpy under such conditions is the heat absorbed (or released) by the material through a chemical reaction or by external heat transfer. Enthalpies for chemical substances at constant pressure assume standard state: most commonly 1 bar pressure.nthalpy itself is a thermodynamic potential, so in order to measure the enthalpy of a system, we must refer to a defined reference point; therefore what we measure is the change in enthalpy, Î´ H.