Endo/Exothermic Quiz

What direction does heat go in an EXOTHERMIC reaction?

• INTO the reaction

• OUT of the reaction

• Not related to the reaction

Tags

NGSS.HS-PS1-4

What direction does heat go in an endothermic reaction?

• Into the reaction

• Out of the reaction

• Not related to the reaction

Tags

NGSS.HS-PS1-4

Which term describes the energy required to start a reaction?

• Activation Energy

• Kinetic Energy

• Potential Energy

• Thermal Energy

Tags

NGSS.HS-PS1-4

Which of the following is a characteristic of an exothermic reaction?

• Absorbs more energy than it releases

• Releases more energy than it absorbs

• Only occurs at low temperatures

• Cannot occur spontaneously

Tags

NGSS.HS-PS1-4

Draw the energy profile graph for an EXOTHERMIC reaction.

Tags

NGSS.HS-PS1-4

A beaker contains a reaction that has gotten hotter over the course of the reaction. This makes it an ___________ reaction.

Tags

NGSS.HS-PS1-4

What is the term used to describe the heat content of a chemical system?

• Enthalpy

• Entropy

• Gibbs Free Energy

• Internal Energy

Tags

NGSS.HS-PS1-4

What is the main difference between an endothermic and an exothermic reaction?

• The speed at which they occur

• The amount of light they emit

• The direction in which heat is transferred

• The amount of gas produced

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-4

Which of the following best describes the law of conservation of energy in a chemical reaction?

• Energy is created during the reaction

• Energy is destroyed during the reaction

• Energy can neither be created nor destroyed, only transformed

• Energy is always lost as heat in the surroundings

Tags

NGSS.HS-PS1-4

In an exothermic reaction, the products have ____ potential energy than the reactants.

• Higher

• Lower

• Equal

• Variable

Tags

NGSS.HS-PS1-4