Exothermic or Endothermic Exothermic releases energy into the

Exothermic or Endothermic? Exothermic releases energy into the surrounding as heat. As a result, the temperature of the surrounding increases. Endothermic absorbs energy from the surrounding. As a result, the temperature of the surrounding decreases.

Endothermic or Exothermic?

5. 2 Calorimetry and Enthalpy

Task Read pages 292 -297 In your notebook, write the definitions of the keywords

Specific Heat Capacity Substance A has a specific heat capacity of 4. 18 and substance B has specific heat capacity of 2. 03. What does this mean?

Calorimetry Calculations q = mcΔT q= total amount of thermal energy absorbed o released m=mass of the substance c=specific heat capacity ΔT = change in temperature (final-initial)

Sample Problem 1 Let’s do sample problem 1 from page 295 together!

Task Do questions 1 -8 from the handout. You have to finish it in class!

Enthalpy Change

Calculating ΔH

Molar Enthalpy Change

Connecting Enthalpy Change and Molar Enthalpy Change

Task Copy down Sample Problem 1 and 2 from the board

HOMEWORK Required Reading: p. 292 -306 Make notes on Representing Molar Enthalpy Changes and copy down the sample problems Do practice problems 1 -4 from page 301 Do questions 1 -7 on page 306