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Unit 3: Thermochemistry:

1)      Understand what the system, the surroundings, and the universe mean.

2)      Be familiar with the units of energy.

3)      Understand what the First Law of Thermodynamics means.

4)      Be familiar with how the internal energy of a system is affected by exchanges of heat and work between the system and the surroundings.

5)      Understand what a state function is.

6)      Define enthalpy, and explain how heat transfers from or to the system at constant pressure changes it.

7)      Know what the sign of the enthalpy indicates about the reaction.

8)      Be able to sketch an enthalpy diagram for reactions given their enthalpy changes.

9)      Be able to calculate the amount of heat released or absorbed by a reaction, knowing the quantity of the reactants and the enthalpy of the reaction on a mole basis.

10)  Define heat capacity and specific heat (capacity).

11)  Be able to work problems on calorimetry.

12)  State and apply Hess’s Law of Constant Heat Summation in calculating enthalpies of reaction from enthalpies of other reactions.

13)  Know what the standard state of an element or compound is.

14)  Define and illustrate what is meant by standard enthalpy of formation.

15)  Calculate the enthalpy change of a reaction using a table of standard enthalpies of formation.

16)  Become familiar with the use of a calorimeter to measure the enthalpy change during a chemical reaction.

17)  Use heat of fusion and heat of vaporization to find enthalpy change involved in changes of state.

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