Question
Consider the following reactions:
Enthalpy of formation of H2O (l) is:
-
- x2 kJ mol-1
-
+ x3 kJ mol-1
-
- x4 kJ mol-1
-
+ x1 kJ mol-1
Solution
A.
- x2 kJ mol-1
Enthalpy of formation: The amount of heat evolved or absorbed during the formation of 1 mole of a compound from its constituent elements is known as heat of formation. SO, the correct answer is:
