The enthalpy of a reaction is +270 kj/mol. what can you determine about the
reaction?
o
a. it is spontaneous.
o
b. it is endothermic.
o
c. it is nonspontaneous.
o
d. it is exothermic.

The correct answer is D it is exothermic.

Explanation:

Enthalpy is a state function of a system. Enthalpy is measure of heat content of a system.

      Exothethermic reation proceed with liberation of energy in form of heat.As a result enthalpy is positive in case of Exothermic reaction.

Increases pressure (inverse relationship) because as you decrease temperature, molecules are moving slower and have less kinetic energy. Pressure decreases as you increase temperature because molecules move past each other quicker, so they don’t bump into each other with as much force.