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, .
Example 2 Standard enthalpies of formation are: C2H5OH(l) -228, CO2 -394, and H2O(l) -286 kJ/mol. Calculate the enthalpy of the reaction, C2H5OH + 3 O2 Â® 2 CO2 + 3 H2O Solution. From the definition of the enthalpy of formation, we have the following equations and the energy changes of reactions.rite the enthalpies of formation below their formulas in the equation, we have: A handbook gives the enthalpy of formation of NH. 1  Calculate the enthalpy of the reaction CH4 + 2 O2 = CO2 + 2 H2O from the enthalpies of formation: CH4 -75 kJ/mol, CO2 -394, and H2O(l) -286 kJ/mol.