Changes in State (phase changes) 1. Melting - solid to liquid a. Particles get more kinetic energy and begin rotating around each other. b. There isn’t.

Slides:

Advertisements

Similar presentations

E. Changes in State (phase changes) 1. Melting - solid to liquid a. Particles get more kinetic energy and begin rotating around each other. b. There isnt.

Advertisements

Changes in State.

Kinetic Energy and Phase Changes. Diffusion Diffusion is the process by which molecules will move randomly in order to fill the space that they are in.

Ch. 8 - Solids, Liquids, & Gases II. Changes in State (p )  Phase Changes  Heating Curves MATTER.

Phase Changes – Changes of State SI. Kinetic Theory of Matter All matter is made up of atoms and molecules that act as tiny particles. These tiny particles.

Particles get more kinetic energy and begin rotating around each other. There isn’t enough energy to break the intermolecular attractions, so the particles.

Changes of State.

Phase Changes Melting Vaporization Condensation Freezing Sublimation.

Kinetic Theory of Matter Matter is made up of vibrating particles Temperature A measure of how hot or cold a substance is a gain or loss of energy can.

PRESENTATION ON CHEMISTRY THREE STATES OF MATTER BY MRS. IRUM KHALID LECTURER DA SKBZ COLLEG E.

Matter. Review States of Matter Solid Liquid Gas Plasma.

Properties of Matter Chapter 2.

Picture 1. Picture 2 Picture 3 Picture 4 Picture 5.

Heating and Cooling Curves of Water

States of Matter Kinetic Molecular Theory Four States of Matter Thermal Expansion.

THE PARTICULATE NATURE OF MATTER. Learning Objectives 1.Properties of the three states of matter 2.The Kinetic Particle Theory 3.Explain the change in.

Kinetic Particle Theory. 1.1 States of Matter Matter can exist as a solid, liquid or a gasMatter can exist as a solid, liquid or a gas These three forms.

Unit 1 Lesson 6 Changes of State

Section 2: Changes of State

Chapter 7 Lesson 3. Physical Change A change in size, shape, form, or state of matter Matter’s identity stays the same Matter does not become something.

Mrs Teo Chin Chew The Chinese High School. Changes in State MeltingMelting FreezingFreezing BoilingBoiling CondensationCondensation SublimationSublimation.

SECTION 2: CHANGES OF STATE Chapter 2: Solids, Liquids, and Gases.

GPS S8P1. Students will examine the scientific view of the nature of matter. b. Describe the difference between pure substances (elements and compounds)

State Changes How matter changes forms. What is energy?  Energy is the ability to do work or cause change.

State Changes How matter changes forms. What is energy?  Energy is the ability to do work or cause change.

States of Matter 3 States of Matter: 1)solid- a substance with a definite shape and a definite volume. The particles of a solid vibrate, but do not move.

State Changes How matter changes forms Physical Science.

 A change of state is the conversion of a substance from one state to another  All changes of state are physical changes  The identity of a substance.

Phase Changes Melting, Freezing, Vaporization, Condensation, Sublimation.

Changes of State. Is the change of a substance from one physical form to the other All changes of states are physical changes, this means that the identity.

◦ A change in state from a solid to a liquid occurring at a specific temperature.

CHAPTER 6 REVIEW. Boiling Point  The temperature at which a liquid begins to enter the gaseous state.

Earth Science Intro Unit

I. Phase Changes Matter and Energy Section 2.2. Phase Changes Gas Solid Liquid Amount of heat.

States of Matter Phase Change. Water Water exists on our planet in three states. Ice, water, and water vapor What causes water to be in one phase or another?

Defined shape Defined volume Fixed Particles tightly packed Particles vibrate in their places Defined volume Takes the shape of the container Particles.

Chp Phase Changes Pg Characteristics of Phase Changes  When at least two states of a substance are present, each state is described as.

Changes of State Chapter 3 Section 2. Changing State By removing or adding energy, a substance can lose or absorb energy, its temperature can change,

States of Matter, Lesson 2 Changes in State October 28, 2011.

Chapter 10, Section 4  Changes of State. Phase  Any part of a system that has uniform composition and properties.

Heating Curves. Energy and Phase Change When adding heat to a solid, energy added increases the temperature and entropy until the melting point is reached.

Unit 1 Lesson 5 States of Matter Copyright © Houghton Mifflin Harcourt Publishing Company.

Earth Science Intro Unit

Pg degrees Celsius = 68 degrees Fahrenheit..

Changes of State 3.2.

Unit 1 Lesson 5 States of Matter

CHANGES IN STATES OF MATTER. THE STATE OF THE MATERIAL DEPENDS ON TEMPERATURE!! 1. When the temperature of a material increases, the particles absorb.

CHAPTER 2: MATTER. CHANGES OF STATE When matter changes from one state to another, we call this a phase change Thermal energy is related to the microscopic.

Chapter 8 States of Matter. Objective: Describe three states of matter.

Chapter 6 Section 2- changes of state. Kinetic and Potential Energy  Kinetic energy- the energy of motion  faster the particles move then the greater.

Phase Changes (Changes of State). CA State Content Standards 3e. Students know that in solids the atoms are closely locked in position and can only vibrate;

Melting Solid  Liquid Energy is added, particles speed up (endothermic) Melting Point: Temp. at which a substance melts Freezing Liquid  Solid Energy.

CHANGES OF STATE.  A change of state is the conversion of a substance from one physical form to another.  All changes of state are physical changes.

Fill in the Chart MoleculesDefinite Shape ?Definite Volume? Solid Liquid Gas.

 Solid  Liquid  Gas  Plasma  Solid  Liquid  Gas  Plasma.

HEAT, TEMPERATURE, PHASE CHANGE. HEAT AA form of energy that a substance has because of the motion of its molecules. - When a substance gains heat its.

Phase Change. Temperature is a term used to describe the average kinetic energy of the particles in a substance. In a sample of material at any temperature.

Created by: Mrs. Susan Dube  Solids can become liquids and liquids can become solids  Liquids can become gases and gases can become liquids  Solids.

Seventh Grade Science  Solids can become liquids and liquids can become solids  Liquids can become gases and gases can become liquids  Solids can.

Chapter 3.2 Changes of States (Phase Changes)

Changes in States of Matter

Changes in States of Matter

Changing States of Matter

Phase Change Change of State.

Change of state Chapter 2.

Phase Change Change of State.

States of Matter.

Earth Science Intro Unit

E. Changes in State (phase changes)

Presentation transcript:

Changes in State (phase changes) 1. Melting - solid to liquid a. Particles get more kinetic energy and begin rotating around each other. b. There isn’t enough energy to break the inter-particular attractions, so the particles remain close (liquid).

2. Freezing - liquid to solid a. Particles lose kinetic energy and slow down. b. Attractive forces between particles become stronger than the particles’ motion, so the particles begin merely vibrating in place.

3. Vaporization - liquid to gas a. Types: 1) Boiling - rapid; gas bubbles are produced throughout. 2) Evaporation - slow; occurs at the surface.

4. Evaporation is a cooling process. a. Particles in a liquid gain kinetic energy. b. They leave as gas particles (taking the energy away with them). c. This leaves less energy in the liquid, therefore cooling down what is left.

5. Condensation - gas to liquid a. Particles lose kinetic energy, slow down, and come closer together. b. Inter-particular forces become strong enough to make particles merely rotate around each other.

6. Sublimation - solid to gas a. Dry ice - carbon dioxide b. Iodine c. Frost 7. During phase changes there is no change of temperature.