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Hand-in a paper with one of these explained: Use the KMT to explain why A balloon placed in the freezer would shrink A balloon in the microwave would pop. Changes in State. Phase Changes. Explain the process of melting, freezing, sublimation , and deposition in terms of KMT .
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Hand-in a paper with one of these explained: • Use the KMT to explain why • A balloon placed in the freezer would shrink • A balloon in the microwave would pop.
Changes in State Phase Changes
Explainthe process of melting, freezing, sublimation, and deposition in terms of KMT. • Usethe KMTto explain the processes of evaporation and condensation. • Include: exothermic, endothermic • Additional KEY Terms • Characteristic Property Vapour
Melting or Fusion (s) (l) • Solid is heated (energy absorbed - endothermic). • Energy is utilized to reduce IMFs. • Particles move more freely - liquid. • Characteristic Property (melting point) • unique to each substance.
Vaporization (l) (g) • Energy absorbed (endothermic) further break IMFs • Particle motion increases - gases form • Characteristic Property (boiling point) There are two types of vaporization: evaporation and boiling
1. Boiling- liquid particles at the bottomgiven enough energy to overcome IMFs - vapourreleased. 2. Evaporation: liquid particles on the surfacehave enough energy to overcome IMFs- vapourreleased.
Particles on the surface have fewer IMFs than other particles.
Condensation (g) (l) • Kinetic energy of the particles decreaseas it cools. • Particles slow down, IMFs take hold. • Energy released (exothermic) to surroundings.
Freezing or Solidification (l) (s) • Particles continue to lose energy (exothermic). • Particle motion decreases further. • IMFsincrease and hold stronger. • Particles arrange into unique solid pattern. • Crystalline or amorphous
Sublimation (s) (g) Deposition (g) (s)
decrease IMFs decrease Kinetic Energy decrease particle motion increase particle motion increase Kinetic Energy increase IMFs
CAN YOU / HAVE YOU? • Explainthe process of melting, freezing, sublimation, and deposition in terms of KMT. • Usethe KMTto explain the processes of evaporation and condensation. • Include: exothermic, endothermic • Additional KEY Terms • Characteristic Property Vapour