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Aim: How to determine the melting point of a substance?

Aim: How to determine the melting point of a substance?. Challenge : Design an experiment t o determine the melting point of water. Your write up should include the following components : I. TITLE: II. PURPOSE: MATERIALS: Ice, beaker, water, thermometer, stirring rod,

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Aim: How to determine the melting point of a substance?

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  1. Aim: How to determine the melting point of a substance? Challenge: Design an experiment to determine the melting point of water. Your write up should include the following components: I. TITLE: II. PURPOSE: MATERIALS: Ice, beaker, water, thermometer, stirring rod, clock/stopwatch. IV. PROCEDURE: V. DATA: VI. CALCULATIONS/GRAPH: VII.CONCLUSION: Be sure to include a discussion of sources of error.

  2. Aim: How to determine the melting point of a substance? • What is the freezing point of water? • How would the mass of the sample affect the melting point? Explain. • Determine the boiling point of water. • Describe the states of the elements at STP. • Use a simple particle model to differentiate among properties of solids, liquids, and gases.

  3. Aim: How to determine the melting point of a substance? • condensation • deposition • freezing • fusion • gaseous phase • heat • heat of fusion • heat of vaporization • kinetic molecular theory • sublimation • temperature • vaporization • solidification • melt • solid phase • liquid phase

  4. Aim: How to determine the melting point of a substance? • The structure and arrangement of particles and their interactions determine the physical state of a substance at a given temperature and pressure. • The three phases of matter (solids, liquids, and gases) have different properties.

  5. Aim: How to determine the melting point of a substance? • Temperature is a measurement of the average kinetic energy of the particles in a sample of material. Temperature is not a form of energy. • Matter is made up of particles whose properties determine the observable characteristics of matter and its reactivity.

  6. Aim: How to determine the melting point of a substance? • The concepts of kinetic and potential energy can be used to explain physical processes that include: fusion (melting), solidification (freezing), vaporization (boiling, evaporation), condensation, sublimation, and deposition.

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