Enthalpy Diagrams

Which statement is correct about this

Enthalpy diagram

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-1

Which statement is completely correct about this

Enthalpy diagram

• Shows an exothermic reaction with an Ea _forward= 20 kJ

• Shows an exothermic reaction with an Ea _forward = -20kJ

• Shows an endothermic reaction with an Ea_forward = 20 kJ

• Shows an endothermic reaction with an Ea_forward = -20kJ

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-4

The arrow labelled A in the Enthalpy diagram to the right represents...

• Activation energy of the forward reaction

• Activation energy of the reverse reaction

• The potential energy of the activation complex

Tags

NGSS.HS-PS1-4

The arrow labelled B in the Enthalpy diagram to the right represents...

• Activation energy of the forward reaction

• Activation energy of the reverse reaction

• The potential energy of the activation complex

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-1

Which statement is NOT correct about the values represented in the graph to the left

• The enthalpy of the Activated Complex is 200kJ

• The Ea_forward = 50 kJ

Tags

NGSS.HS-PS1-4

Which statement is NOT completely correct in reference to this graph

• The enthalpy of the Activated Complex is 200kJ

• The Ea_forward = 50 kJ

Tags

NGSS.HS-PS1-4

Which statement is NOT correct about the values shown in the graph

• Enthalpy H_reactants = 150 kJ

• Enthalpy H_products = 50 kJ

• The Ea_reverse = 150 kJ

• The Ea_forward = 100 kJ

Tags

NGSS.HS-PS1-4

Which statement is completely correct?

• This is an endothermic reaction and the Ea_forward = 200kJ

• This is an exothermic reaction and Ea_reverse = 150kJ

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-1

What does C represent in the Enthalpy diagram

• Activation Energy of the reverse reaction

  Ea_reverse

• Enthalpy of the Activated complex

• Activation Energy of the forward reaction

  Ea _forward

What does A represent in the Enthalpy diagram

• Activation Energy of the reverse reaction

  Ea_reverse

• Enthalpy of the Activated complex

• Activation Energy of the forward reaction

  Ea _forward

Tags

NGSS.HS-PS1-4