Bond Energy Calculations

Based upon the graph above, what type of reaction is this?

• Endothermic

• Exothermic

Tags

NGSS.HS-PS1-4

Using the table of average bond energies below the image, the ΔH for the reaction in kJ is.....

• + 160 kJ

• -63 kJ

• - 160 kJ

• -217 kJ

Tags

NGSS.HS-PS1-4

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-1

Using the reaction & table above, determine the change in energy and whether or not the reaction is endothermic or exothermic:

• -2054 kJ endothermic

• 2045 kJ endothermic

• -2045 kJ exothermic

• 2045 kJ exothermic

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-1

How much energy is required to break all of the bonds in the first molecule depicted in the reaction above? (you must include the proper sign for credit)

Tags

NGSS.HS-PS1-4

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-1

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-1

What mass of P₄ must be reacted to produce 5905 kJ of energy?

• 25.43 g

• 563.0 g

• 2.421 g

• 300.0 g

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-1

What is bond energy?

• The energy required to break one mole of bonds in a gaseous substance

• The energy released when a bond is formed

• The energy required to form one mole of bonds in a liquid substance

• The energy released when a bond is broken

Tags

NGSS.HS-PS1-4

Which of the following bonds has the highest bond energy?

• C-H

• O-H

• N≡N

• C=C

Tags

NGSS.HS-PS1-4