Energy Diagram Quiz

This graph represents:

• An endothermic reaction.

• An exothermic reaction.

• A physical change.

• A reversible reaction.

Tags

NGSS.HS-PS1-4

Would the net change in energy, Enthalpy, for the reaction be

• Positive

• Negative

• Constant

• Zero

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-1

This graph represents:

• An endothermic reaction.

• An exothermic reaction.

• A physical change.

• A reversible reaction.

Tags

NGSS.HS-PS1-4

Would the net change in energy, Enthalpy, for the reaction be

• Positive

• Negative

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-1

What is the main difference between endothermic and exothermic reactions in terms of potential energy?

• Endothermic reactions release energy, while exothermic reactions absorb energy.

• Endothermic reactions have products with more potential energy than the reactants, while exothermic reactions have products with less potential energy.

• Endothermic reactions have reactants with more potential energy than the products, while exothermic reactions have reactants with less potential energy.

• There is no difference in potential energy between endothermic and exothermic reactions.

Tags

NGSS.HS-PS1-4

What is required to initiate both endothermic and exothermic reactions?

• A catalyst

• A decrease in temperature

• Activation energy

• A reduction in reactant concentration

In an exothermic reaction, the sign of ΔH is:

• Positive

• Negative

• Zero

• Variable

Tags

NGSS.HS-PS1-4

According to the provided material, which of the following represents the general formula for an endothermic reaction?

Answer explanation

P-R = +H

Tags

NGSS.HS-PS1-4

Which statement correctly describes the energy flow in an exothermic reaction?

• Energy is absorbed from the surroundings.

• Energy is neither released nor absorbed.

• Energy is released to the surroundings.

• Energy is used to break down the products.

Tags

NGSS.HS-PS1-4

What is the main difference between endothermic and exothermic reactions in terms of potential energy?

• Endothermic reactions release more energy than they absorb, while exothermic reactions absorb more energy than they release.

• Endothermic reactions have products with higher potential energy than the reactants, while exothermic reactions have products with lower potential energy than the reactants.

• Endothermic reactions have products with lower potential energy than the reactants, while exothermic reactions have products with higher potential energy than the reactants.

• There is no difference in potential energy between endothermic and exothermic reactions.

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-1