Question

When deltaH for a thermochemical equation is negative, that reaction it ______ , while a positive value for deltaH is associated with an _________ reaction

Answer 1

When ΔH for a thermochemical equation is negative, that reaction is exothermic, while a positive value for ΔH is associated with an endothermic reaction.

Step-by-step explanation:

When ΔH for a thermochemical equation is negative, that reaction is exothermic, while a positive value for ΔH is associated with an endothermic reaction. An exothermic reaction releases energy to the surroundings in the form of heat, resulting in a decrease in enthalpy. On the other hand, an endothermic reaction absorbs energy from the surroundings, causing an increase in enthalpy.