Chapter 9 Heat.

Slides:



Advertisements
Similar presentations
Thermal Physics.
Advertisements

Chapter 14 Heat and Temperature: Temperature Energy Transfer Using Heat.
Chapter 9: Heat.
Heat Section 1 © Houghton Mifflin Harcourt Publishing Company Preview Section 1 Temperature and Thermal EquilibriumTemperature and Thermal Equilibrium.
Temperature, Heat & Expansion. Temperature - The quantity that tells how hot or cold something is compared with a standard. Temperature - The quantity.
Heat Chapter 9 &10. Kinetic-molecular Theory Matter is made up of many tiny particles that are always in motion In a hot body the particles move faster.
 Describe the image  ◦ What is it? ◦ What does it measure? ◦ How does it work?
Chapter 10 Section 1 Temperature. What is Temperature? A measure of the average kinetic energy of the particles in an object –The faster the particles.
Heat, Temperature, Heat Transfer & Thermodynamics
Chapter 14 Heat and Temperature: Temperature Energy Transfer Using Heat.
Chapter 9 Preview Objectives Defining Temperature Thermal Equilibrium
Heat and Temperature: Temperature Energy Transfer Using Heat
Heat and TemperatureSection 2 Temperature & Energy Transfer Chapter 14.1 & 14.2.
HEAT.
Chapter 10 Heat Thermal Equilibrium Bring two objects into thermal contact. –They can exchange energy. When the flow of energy stops, the objects are.
Pre-AP Physics Unit 6: Thermodynamics. “Thermodynamics”  Is derived from Greek meaning “movement of heat.”
Integrated Physics and Chemistry
Physics Unit 6: Thermodynamics
Energy. Energy The capacity to do some kind of work. The capacity to do some kind of work. Involved when there is a change in matter Involved when there.
Heat and TemperatureSection 1 SPS7.c Determine the heat capacity of a substance using mass, specific heat, and temperature.
Temperature and thermal equilibrium Hot Cold. Temperature is proportional to the kinetic energy of atoms and molecules: T~KE.
Chapter 10 Heat. Temperature, internal energy and thermal equilibrium Temperature is “a measure of the average kinetic energy of the particles in a substance.”
Temperature is a measure of the average kinetic energy of the particles in a substance. It is the kinetic energy of a typical particle.
Heat Chapter 10. Defining Temperature Temperature is defined as a measure of the average kinetic energy of the particles in a substance. Temperature measures.
Chapter 6. Heat Definition: the transfer of energy (thermal) between objects that are at different temperatures. Definition: the transfer of energy (thermal)
NOTES-Chapter 12 Thermal Energy. Heat is defined and expressed by the Kinetic Molecular Theory of heat.
Thermodynamics. Thermodynamics – The study of heat transformation. Temperature – A measure of the average kinetic energy of the particles in an object.average.
Chapter 11 Whew! It's Hot!. Temperature and thermal energy.
14-1 : Temperature and Thermal Energy. Temperature The measure of the average kinetic energy of the particles in a substance. The measure of the average.
10.1 Temperature, Thermal Energy, and Heat The kinetic molecular theory explains that all matter is made up of tiny particles.  These atoms and molecules.
Chapter 9 HEAT Goals: Temperature vs Heat, Thermal Energy, Temperature conversions, Specific Heat Capacity, Phase changes and Latent Heat.
Herriman High Honors Physics Chapter 9 Temperature and Heat.
Heat and Temperature Chapter 14.
© Houghton Mifflin Harcourt Publishing Company Preview Objectives Defining Temperature Thermal Equilibrium Thermal Expansion Measuring Temperature Chapter.
Thermodynamics.
Temperature and Thermal Energy Thermodynamics
Heat and Thermal Energy AC Physical Science 2009.
Ch Energy Transfer Kinetic Molecular Theory “Kinetic” = moving “Molecular” = all matter is made up of atoms and molecules So all matter is made up.
Heat Section 1 Preview Section 1 Temperature and Thermal EquilibriumTemperature and Thermal Equilibrium Section 2 Defining HeatDefining Heat Section 3.
Temperature and Thermal Energy. Temperature Temperature – average K.E. of the particles in a sample. Depends on the size of the particles and their velocity.
Ch17 Temperature and Heat
Thermal Energy. Warm Up: To shape metal into a horseshoe, the metal is heated in a fire. Why will a horseshoe bend when it’s very hot, but not after it.
Heat and Temperature Chapter 16 P. Sci. Unit 4 cont.
Chapter 16 & 17 Heat and Temperature. Title : Heat and TemperatureDate: Temperature Temperature Scale Fahrenheit Celsius Kelvin Energy Transfer Conduction.
Heat and Thermal Energy Sources 14 Key Ideas Thermal energy influences temperature, density, pressure, and a substance’s physical state. Thermal energy.
Heat and Temperature Chapter 10. Temperature Proportional to the average kinetic energy of all particles in an object –What is kinetic energy? –What.
Predict/Observe/Explain Predict what will happen to a balloon placed over an open flame… Observe! Explain what happened!
Ch. 6 – Thermal Energy. Sec. 1 – Temperature & Heat ENERGY Kinetic (KE) Potential – (PE) Energy of Motion Energy Stored.
Thermal Energy & Energy Transfer. Kinetic-Molecular Theory in a hot body, the particles move faster, and thus have a higher energy than particles in a.
Temperature - A measure of how hot or cold. Measured in Celsius, Fahrenheit, and Kelvin. THERMAL ENERGY AND MATTER.
Heat, Temperature, Heat Transfer, Thermal Expansion & Thermodynamics.
In this chapter you will:  Learn how temperature relates to the potential and kinetic energies of atoms and molecules.  Distinguish heat from work. 
Section 1 Temperature and Thermal Equilibrium Chapter 9 Objectives Relate temperature to the kinetic energy of atoms and molecules. Describe the changes.
Chapter 9 Heat. Temperature  Temperature is proportional to the kinetic energy of atoms and molecules.  Internal energy is the energy of a substance.
THERMAL ENERGY.
Thermal Jeopardy.
Chapter 9 Defining Temperature
Temperature and Heat Transfer
Heat and Heat Transfer Heat.
Heat, Temperature, Heat Transfer, Thermal Expansion & Thermodynamics
Adam Jacoway & Craig Drenthe III
Temperature Chapter 10 Section 1.
Energy that is made up small particles, called atoms & molecules; the faster the movement of particles the warmer it becomes; this is what kind of energy?
Heat = Transfer of energy between objects that are at different temperatures Goes from the HIGHER temp. object to the LOWER temp. object.
Heat Ch 6.
Unit 3 - Energy Learning Target 3.4 – Define Temperature and explain how thermal energy is transferred (conduction, convection, & radiation)
Energy & Transformations
Heat, Temperature, & Thermodynamics
Temperature Temperature is a measure of the average kinetic energy of the particles in matter. Low- temperature particles have a low average kinetic energy,
Heat, Temperature, Heat Transfer, Thermal Expansion & Thermodynamics
Presentation transcript:

Chapter 9 Heat

Heat Temperature and Thermal Equilibrium Defining Heat Changes in Temperature and Phase

Temperature

Temperature and Kinetic Energy Temperature = A measure of the average kinetic energy of the particles in a substance For monatomic gas  translational KE

For polyatomic substances…

Internal Energy Internal energy (U) = the total energy of a substance due to the KE and PE of its particles Internal energy depends on mass and temperature For an ideal gas, internal energy is proportional to just temperature

Temperature & Internal Energy Distinguish between temperature and internal energy Which depends on mass? Compare T and U for… 1 cup of water @ 20°C and 1 cup of water @ 25°C 1 cup of water @ 20°C and ½ cup of water @ 20°C 1 cup of hot tea and a swimming pool of cold water

Thermal Equilibrium Thermal equilibrium = the state in which two bodies in physical contact with each other have identical temperatures

Thermal Expansion Generally, at constant pressure, an increase in temperature causes an increase in volume Exception? Compare gases, liquids, and solids

Temperature Units Celsius (°C) Fahrenheit (°F) Kelvin (K)

Another important point to know: Absolute zero = 0 K

Temperature Conversions 𝑇F= 9 5 𝑇C+32.0 𝑇=𝑇C+273.15 𝑇F = Fahrenheit temperature 𝑇C = Celsius temperature 𝑇 = Kelvin temperature

Heat Heat = the energy transferred between objects because of a difference in their temperatures Energy transferred as heat moves from an object with higher temperature to an object with lower temperature

What is happening on a macroscopic scale? What is happening on a microscopic scale? (What is happening with temperature, internal energy, and heat?)

Heat = Q

3 Types of Heat Conduction Convection Radiation Requires contact Consider conductivity Convection Fluid movement Radiation Electromagnetic waves

Conservation of Energy Δ𝐾𝐸+Δ𝑃𝐸+Δ𝑈=0

Specific Heat Capacity Specific heat capacity = the quantity of heat required to raise 1 kg of a substance by 1 K or 1°C given constant pressure and volume Units: J/kg·°C 𝑐 𝑝 = 𝑄 𝑚Δ𝑇

Calorimetry = an experimental procedure used to measure the energy transferred from one substance to another as heat

𝑄 𝑤 =− 𝑄 𝑥 𝑐 𝑝,𝑤 𝑚 𝑤 Δ 𝑇 𝑤 =− 𝑐 𝑝,𝑥 𝑚 𝑥 Δ 𝑇 𝑥 energy absorbed by water energy released by substance = 𝑄 𝑤 =− 𝑄 𝑥 𝑐 𝑝,𝑤 𝑚 𝑤 Δ 𝑇 𝑤 =− 𝑐 𝑝,𝑥 𝑚 𝑥 Δ 𝑇 𝑥 Compare the final temperatures of the water and the substance

Latent Heat Latent heat (L) = the energy per unit mass that is transferred during a phase change of a substance Latent heat 𝑄=𝑚𝐿 Heat of fusion Solid/liquid 𝐿 𝑓 Heat of vaporization Liquid/gas 𝐿 𝑣

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2024 SlidePlayer.com Inc. All rights reserved.