Given the reaction 1/2 N2( g) + 3/2 H2 (g) ___> NH3 (g) +11.0kcal.Is this reaction exothermic or endothermic?
The equation tell you heat is given off; therefore, it is exothermic.
To determine whether the reaction is exothermic or endothermic, you need to analyze the energy change associated with the reaction.
In this case, the reaction is accompanied by a decrease in energy, as indicated by the release of 11.0 kcal (a negative value).
Therefore, the reaction is exothermic.
To reach this conclusion, you can follow these steps:
1. Examine the energy change (kcal) provided in the reaction equation.
2. If the value is positive, it means energy is absorbed from the surroundings, indicating an endothermic reaction.
3. If the value is negative, it means energy is released to the surroundings, indicating an exothermic reaction.