11.3

Question 1

What is the 1st way that change in enthalpy change can be communicated?

Answer 1

By stating the molar enthalpy of a specific reactant in a reaction

Question 2

What is the 2nd way that change in energy can be communicated?

Answer 2

By stating the molar enthalpy change for a balanced reaction equation

Question 3

What is the 3rd way that change in energy can be communicated?

Answer 3

By including an energy value as a term in a balanced reaction equation

Question 4

What is the 4th way that change in energy can be communicated?

Answer 4

By drawing a chemical energy potential diagram

Question 5

What type of reaction is it if the molar enthalpy is less than 0?

Answer 5

Exothermic

Question 6

What type of reaction is it if the molar enthalpy is greater than 0?

Answer 6

Endothermic

Question 7

Where is the energy placed when a reaction has an enthalpy change is less than 0?

Answer 7

On the products side

Question 8

Where is the energy placed when a reaction has an enthalpy change is greater than 0?

Answer 8

On reactants side

Question 9

Which side has the stronger chemical potential energy when enthalpy change is less than 0?

Answer 9

Reactants have greater potential energy

Question 10

Which side has the stronger chemical potential energy when enthalpy change is greater than 0?

Answer 10

Products have greater potential energy