Specific Heat  Introduction—Temperature and Heat  Specific Heat Experiment  Heat Calculation for Water  Calculation of Specific Heat of Sample.

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Presentation transcript:

Specific Heat  Introduction—Temperature and Heat  Specific Heat Experiment  Heat Calculation for Water  Calculation of Specific Heat of Sample

Introduction—Temperature and Heat The measurement of the average kinetic energy of particles of a substance ( o C) Temperature-- Heat-- The transfer of energy from particles of one substance to particles of another substance  Question #1: How is a particle’s speed related to its temperature? Push Arrow to Play!  Objective #1: GAME!! –By controlling the temperature and a gate, students will capture all of the gas atoms in only one chamber.

Specific Heat Experiment  Directions: – Place 50 ml of cool tap water into the calorimeter. Record temperature. – Record temperature of sample from hot plate. – Insert sample into calorimeter. – After equilibrium, record final temperature of water. Supplies: 1.Calorimeter (Cup and Lid) 2.Thermometer 3.50 ml of cool tap water 4.2 Samples of Heated Metal

Heat Calculation for Water  Use the “heat calculator” spreadsheet to calculate the heat added to the water  User Inputs: – Mass of sample – Specific Heat of substance (a list of substances is provided with the spreadsheet) – Temperature values  Program Outputs: – Heat added to water

Calculation of Specific Heat of Sample  Using the “heat calculator,” find the specific heat of your sample.  Go to the SED 555 newsgroup to input your data for class averaging.  Input this specific heat into the newsgroup heading—Class Results-Specific Heat