SCH3U - States of Matter and The Kinetic Molecular Theory.pdf

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States of Matter and TheKinetic Molecular Theory
Learning GoalsI understand the Kinetic Molecular Theory of how molecules moveI understand the impact temperature has on the movement of moleculesI can explain how molecules move based on there intermolecular forcesI am able to convert between different units related to atmospheric pressureI am able to explain the relationship between atmospheric pressure andaltitudeI am able to convert between degree celsius and Kelvin
Kinetic Molecular Theory&&&'ll substance are made of particles in constant° random motionHow Entities Move#
Kinetic Molecular Theory±²9Solidsare made of vibrating particles locked in crystal lattice² Adding energyincreases vibration forces ³ie² kinetic energy increases´ until it is greater thanattractive forces between particles² This causes…µ²3elting¶ which occurs when particles slide over each other¶ making…·²12iquids¶ adding still more energy increases the speed of particle motion ³ie²kinetic energy increases´ until kinetic forces are greater than the remainingattractive forces between particles² This causes…¸²'''(oiling¶ adding still more energy results in particles moving faster ³ie² kineticenergy increases´ and further apart in random directions¶ resulting in…¹²,,-as¶ only covalent molecules at STP ³standard temperature and pressure´are gases while ionic compounds need temperatures in the ±ºº’s ofoC
Kinetic Energy and TemperatureAs a substance is warmed the kinetic energy of the entities increases²This increase in kinetic energy makes the substance feel warmer to the touch²If warming continues¶ some of the absorbed energy helps to overcome the attractive forces between the entities¶resulting in a change of state²DU]S`VUXQZt[uXU# is a measure of the average kinetic energy of the entities in a substance
Attractive Forces

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Term
Winter
Professor
NoProfessor
Tags
attractive forces, Kinetic Molecular Theory

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