Energy Diagram

What is the PE of the products?

• 100 kJ

• 175 kJ

• 50 kJ

• 75 kJ

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-1

What is the activation energy?

• 100 kJ

• 175 kJ

• 50 kJ

• 75 kJ

Tags

NGSS.HS-PS1-4

What is the change of the heat of the reaction (ΔH)?

• 100 kJ

• -175 kJ

• -50 kJ

• 75 kJ

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-1

What type of reaction is this?

• Endothermic

• Exothermic

Tags

NGSS.HS-PS1-4

Which letter represents the activation energy for the reverse reaction?

• A

• B

• C

• D

• E

Tags

NGSS.HS-PS1-4

Which number represents the activated COMPLEX?

• 1

• 2

• 3

• 4

Tags

NGSS.HS-PS1-4

Examine the picture and choose the correct ETD.

• electrical E > radiant E + thermal E

• gravitational PE > mechanical E

• Chemical PE > thermal E + radiant E

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

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

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.MS-PS3-4

NGSS.MS-PS3-5

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

What type of reaction does this diagram represent?

• exothermic

• endothermic

Tags

NGSS.HS-PS1-4