WEDNESDAY, MARCH 5, 2014

We got back:

-Specific Heat of Metal Lab report

-Heat of Combustion Lab report

-Thermochemistry quiz

-Woosh Bottle quiz

Quick notes:

-Higher specific heat capacity: harder to increase temperature (takes a lot of heat)

-A system can heat up or cool down without an enthalpy change

-Do not need to pay super attention to sig figs on test bc it is not what the unit is about

Went over last night’s hw: ...check moodle Unit 8 Keys folder

-More gas= super disordered= higher gas

-Endothermic= min enthalpy will be on reactants side

-Exothermic= min enthalpy will be on products side

-Minimum entropy and minimum enthalpy CAN be on the same sides

-Nature does NOT like to become more ordered

DeltaS tends to be positive in nature (in spontaneous processes)

-Calculate S= products MINUS reactants

-Positive= more order to less order

-Higher the S= more disorder

-S= "measure of messy"

-Entropy there ARE values for the elements

-kJ per Kelvin mole = entropy

-standard conditions = 25 degrees celsius and 298 kelvin

Homework:

-TEST TOMORROW

study session at 7 am

-Webassign due tonight by 11:59 pm