Does this graph show an endothermic or exothermic reaction?
The vertical axis is labeled energy and the horizontal axis is labeled progress of reaction. The energy of reactants, 3 N2 H4, is depicted by a line parallel to the horizontal axis from a point on the vertical axis. With catalyst a small amount of activation causes the reaction to form the products while without catalyst a large amount of activation energy is required for reaction to start forming the products. The energy of products, 4N H3 + N2, is depicted by a line parallel to the horizontal axis much below that for the reactants.
(1 point)
Responses
Endothermic, because the products are at a lower energy state than the reactants.
Endothermic, because the products are at a lower energy state than the reactants.
Exothermic, because it takes a lot of energy to cause the reaction to occur.
Exothermic, because it takes a lot of energy to cause the reaction to occur.
Exothermic, because the products are at a lower energy state than the reactants.
Exothermic, because the products are at a lower energy state than the reactants.
Endothermic, because it takes a lot of energy to cause the reaction to occur.
1 answer
The correct response is:
Exothermic, because the products are at a lower energy state than the reactants.
In an exothermic reaction, the energy of the products is lower than that of the reactants, indicating that energy is released during the reaction.
