Potential Energy Curves

What letter represents the energy of the products?

• A
• B
• C
• D

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-1

What type of reaction is this?

• Endothermic
• Exothermic

Tags

NGSS.HS-PS1-4

Which of the following phase changes would this type of energy diagram refer to?

• melting
• evaporation
• sublimation
• condensation

What letter represents the activation energy?

• A
• B
• C
• D

Tags

NGSS.HS-PS1-4

Is this reaction endothermic or exothermic?

• endothermic 
• exothermic

Tags

NGSS.HS-PS1-4

What is the ΔH of this reaction?

• 40 kJ
• 20 kJ
• 80 kJ
• 60 kJ

Tags

NGSS.HS-PS1-4

What is the energy of the activated complex?

• 75 kJ
• 225 kJ
• 300 kJ
• 225 kJ

Tags

NGSS.HS-PS1-4

What is the activation energy of the reverse reaction?

• 75 kJ
• 300 kJ
• 150 kJ
• 225 kJ

Tags

NGSS.HS-PS1-4

How much potential energy do the products of the reverse reaction have?

• 225 kJ
• 300 kJ
• 75 kJ
• 250 kJ

Tags

NGSS.HS-PS1-4

Which of the following reactions would NOT be representative of this graph?

• cellular respiration
• burning gasoline
• photosynthesis
• adding Zn to HCl

Tags

NGSS.HS-PS1-4