the amount of heat involved in the synthesis of 1 mole of a compound from its elements with all substances in their standard states at 25 degrees celcius is called
The standard enthalpy of formation is defined as the change in enthalpy when one mole of a substance in the standard state (1 atm of pressure and temperature of 298.15
K) is formed from its
pure elements under the same conditions.
Answer : It is called as standard heat of formation.
Explanation :
Enthalpy of formation : The enthalpy of change when one mole of a pure compound is formed from its elements is called the enthalpy of formation. It is denoted as, \(\Delta H_f\).
Standard heat of formation : When the reacting elements and the product formed are all in their standard state at \(25^oC\), the enthalpy change accompanying the chemical reaction is called the standard enthalpy of formation or standard heat of formation. It is denoted as, \(\Delta H_f^o\).
Hence, it is called as standard heat of formation.