What does a positive H look like on a potential energy diagram?A.The potential energy of the reactants is greater than the potential energy of the products.B.The potential energy of the products is greater than the potential energy of the reactants.C.The activation energy of the reactants is less than the activation energy of the products.D.The potential energy of the products is equal to the potential energy of the reactants.SUBMITarrow_backPREVIOUS
Question
What does a positive H look like on a potential energy diagram?A.The potential energy of the reactants is greater than the potential energy of the products.B.The potential energy of the products is greater than the potential energy of the reactants.C.The activation energy of the reactants is less than the activation energy of the products.D.The potential energy of the products is equal to the potential energy of the reactants.SUBMITarrow_backPREVIOUS
Solution
The correct answer is B. The potential energy of the products is greater than the potential energy of the reactants. This is because a positive ΔH (change in enthalpy) in a reaction indicates that the reaction is endothermic, meaning it absorbs heat from its surroundings. In an endothermic reaction, the energy required to break the bonds in the reactants is greater than the energy released when new bonds form in the products. This results in a net gain of energy, which is shown on a potential energy diagram as the products having a higher potential energy than the reactants.
Similar Questions
Which statement describes the potential energy diagram of an exothermic reaction?A.The activation energy of the reactants is greater than the activation energy of the products.B.The potential energy of the products is equal to the potential energy of the reactants.C.The potential energy of the products is greater than the potential energy of the reactants.D.The potential energy of the reactants is greater than the potential energy of the products.
What part of a potential energy diagram reveals the enthalpy of reaction?A.The difference in energy between the reactants and the activation energyB.The difference in energy between the activation energy and the productsC.The difference in potential energy between the reactants and productsD.The potential energy of the reactants plus the potential energy of the products
The diagram shows that the energy of the products is lower than the energy of the reactants. Therefore, the diagram represents a(n) reaction.
draw the energy level diagram of h2 molecule?
For an exothermic reactionH of the products is less than H of the reactantsH of the products is more than H of the reactantsH of the products is equal to H of the reactantsΔH is always positive
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