Energy Diagrams

Examine the picture and choose the correct ETD.

• electrical E > radiant E + thermal E

• gravitational PE > mechanical E + sound E

• electrical E > thermal E + radiant E

• mechanical E > electrical E + mechanical E + sound E

Tags

NGSS.HS-PS3-2

What letter represents the energy of the products?

• A

• B

• C

• D

• E

Tags

NGSS.HS-PS1-4

The following graph shows two different reaction pathways for the same overall reaction at the same temperature. Which pathway is the result of adding a catalyst and why?

• Red, because the activation energy is larger

• Blue, because the activation energy is lower

• neither one represents the pathway of a catalyst

Tags

NGSS.HS-PS1-4

Which letter represents the activation energy?

• B

• E

• C

• D

Tags

NGSS.HS-PS1-4

What type of reaction does this diagram represent?

• exothermic

• endothermic

Tags

NGSS.HS-PS1-4

Increasing the temperature gives particles more __________.

• Time

• Energy

• Space

• Frequency

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What type of reaction is this?

• Endothermic

• Exothermic

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-4

What letter represents ΔH?

• A

• B

• C

• D

• E

Tags

NGSS.HS-PS1-4

What letter represents the transition state?

• A

• B

• C

• D

• E

Which part of an energy diagram represents the activation energy of a reaction?

• The peak of the curve

• The starting point of the curve

• The end point of the curve

• The area under the curve