Chapter 11 Energy in Thermal Processes Heat and Internal Energy

Slides:



Advertisements
Similar presentations
Chapter 20 Heat, specific heat Internal energy First law of thermodynamics Part 3 Thermodynamics Chapter 20: Heat and the First Law of Thermodynamics Reading.
Advertisements

Lets start with a new symbol Q. Q is for “Heat” Measured in Joules. Heat is a form of energy.
Chapter-10 Temperature and Heat 1 Temperature and First Law of Thermodynamics 2Heat and Specific Heat Capacity 3First Law of Thermodynamics 4Ideal Gas.
Chapter 6 Section 2 Quiz Review
Energy in Thermal Processes
Thermal Energy.
Physics 1025F Heat & Properties of Matter
Energy in Thermal Processes
Energy in Thermal Processes
Chapter 9: Heat.
Energy in Thermal Processes
Energy in Thermal Processes
Energy as Heat Transfer
Thermal Energy & Heat. What is Temperature? Temperature  measure of the average KE of all the particles within an object.
Chapter 11 Energy in Thermal Processes. Energy Transfer When two objects of different temperatures are placed in thermal contact, the temperature of the.
Heat Physics Lecture Notes
Energy in Thermal Processes
Energy in Thermal Processes
HeatHeat.  When two objects at different temperatures are put into contact, heat spontaneously flows from the hotter to the cooler one. If kept in contact.
THE QUANTITY OF HEAT   The thermal energy lost or gained by objects is called heat. One calorie (cal) is the quantity of heat required to change the temperature.
Heat ICP Chapter 11.
Chapter 10 Heat Thermal Equilibrium Bring two objects into thermal contact. –They can exchange energy. When the flow of energy stops, the objects are.
Lecture 3 Heat Chapter opener. When it is cold, warm clothes act as insulators to reduce heat loss from the body to the environment by conduction and convection.
Chapter 11 Energy in Thermal Processes. Energy Transfer When two objects of different temperatures are placed in thermal contact, the temperature of the.
Chapter 11 Heat. Heat Heat is transferred thermal (internal) energy resulting in a temperature change. Heat is transferred thermal (internal) energy resulting.
Energy in Thermal Processes
Thermal Energy Heat.
Calorimetry and Specific Heat. Heat and Temperature Basics Temperature does not depend on the amount If two samples of identical material are at the same.
14-1 Heat As Energy Transfer If heat is a form of energy, it ought to be possible to equate it to other forms. The experiment below found the mechanical.
Temperature is a measure of the average kinetic energy of the particles in a substance. It is the kinetic energy of a typical particle.
Unit 6 : Part 3 Heat. Outline Definition and Units of Heat Specific Heat and Calorimetry Phase Changes and Latent Heat Heat Transfer.
Thermodynamics. Thermodynamics – The study of heat transformation. Temperature – A measure of the average kinetic energy of the particles in an object.average.
Chapter 17 Energy in Thermal Processes: First Law of Thermodynamics.
College Physics, 7th Edition
Chapter 11 Heat. From last chapter… When two objects of different temperatures are placed in thermal contact, the temperature of the warmer decreases.
You did work against friction, where did the energy go?
Thermal Energy and Heat
Thermal Energy and Heat Ch 13 in our textbook. Thermal energy and heat Heat is energy flowing between 2 objects because there is a difference in temperature.
Thermal Energy Thermal Energy: The total internal Energy Internal Energy: The sum of the kinetic and potential energies of the internal motion of particles.
GPS  S8S8P2 Students will be familiar with the forms and transformations of energy.  d. Describe how heat can be transferred through matter by the collisions.
Heat, Temperature, and Internal Energy
Power use per person per day, by Country (2007) Why do we use the unit of the “Joule”?
Conduction, Convection and Radiation. Radiation: heat transfer via radiant energy  Radiant energy is in the form of electromagnetic waves.
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.
CH. 12 Thermal Energy Sec. 12.1: Temperature & Thermal Energy.
Specific Heat and Thermal Energy Transfer Chp. 6 and 16 notes continued.
Thermal Energy & Thermodynamics. Heat Heat – The transfer of thermal energy from one object to another because of a temperature difference. Flows spontaneously.
Latent Heat Example Problems Kimal Honour Djam. 1.A 1.50-kg iron horseshoe initially at 600°C is dropped into a bucket containing 20.0 kg of water at.
Ch. 6 – Thermal Energy. Sec. 1 – Temperature & Heat ENERGY Kinetic (KE) Potential – (PE) Energy of Motion Energy Stored.
Ying Yi PhD Chapter 11 Energy in Thermal Processes 1 PHYS HCCS.
Chapter 11 Energy in Thermal Processes. Energy Transfer When two objects of different temperatures are placed in thermal contact, the temperature of the.
Chapter 11 Energy in Thermal Processes. Energy Transfer When two objects of different temperatures are placed in thermal contact, the temperature of the.
 Has fixed volume  Has fixed shape  Molecules are held in specific locations  by electrical forces  vibrate about equilibrium positions  Can be.
Raymond A. Serway Chris Vuille Chapter Eleven Energy in Thermal Processes.
Raymond A. Serway Chris Vuille Chapter Eleven Energy in Thermal Processes.
Ying Yi PhD Chapter 12 Temperature and Heat 1 PHYS HCCS.
1 This graph can be divided into 3 distinct regions, Identify them and explain what is occurring in each segment.
Specific and Latent Heat Definitions Heat and Temperature Change Examples Heat and Phase Change Examples Mechanisms of Heat Flow – Conduction – Convection.
Chapter 19 Heat and the First Law of Thermodynamics
THERMAL ENERGY.
5.2 Part 2 Heat Transfer.
Energy in Thermal Processes
Chapter 19 Heat and the First Law of Thermodynamics
Chapter 16 Temperature and Heat.
Heat Physics 2053 Lecture Notes Heat 14 (01 of 32)
Chapter 19 Heat and the First Law of Thermodynamics
Calorimetry Conservation of thermal energy: Final Temperature: m1 m2
Calorimetry Conservation of thermal energy: Final Temperature: m1 m2
Presentation transcript:

Chapter 11 Energy in Thermal Processes Heat and Internal Energy Specific Heat Calorimetry Latent Heat and Phase Change Energy Transfer

James Prescott Joule 1818 – 1889 British physicist Conservation of Energy Relationship between heat and other forms of energy transfer

Heat and Internal Energy What is Heat? What are the units of Heat? What is Internal Energy? Energy Transfer

Specific Heat What is specific Heat? Units of specific Heat Heat and specific Heat

A Consequence of Different Specific Heats Water has a high specific heat compared to land On a hot day, the air above the land warms faster The warmer air flows upward and cooler air moves toward the beach

Calorimeter What is a Calorimeter? How do I use it?

Calorimeter - Example The temperature of a 0.05 kg ingot of metal is raised to 200.0 °C, and the ingot is then dropped into a light, insulated beaker containing 0.40 kg of water initially at 20.0 °C. If the final equilibrium temperature of the mixed system is 22.4 °C, find the specific heat of the metal.

Phase Changes What is a phase change? Types of phases change Solid to liquid – melting Liquid to gas – boiling What is changing during Phases change? What is latent heat? SI units of latent heat What is sublimation?

Graph of Ice to Steam

Warming Ice

Melting Ice

Warming Water

Boiling Water

Heating Steam

Extra Credit A iron horseshoe of mass mi initially at temperature Ti °C is dropped into a bucket containing mw kg of water at temperature Tw °C. Find using energy conservation an expression of the final equilibrium temperature Tf? Neglect any energy transfer to or from the surrounding. Let cw be the specific heat of water and ci be the specific heat of iron.

Methods of Heat Transfer Need to know the rate at which energy is transferred Need to know the mechanisms responsible for the transfer Methods include Conduction Convection Radiation

Conduction

Convection

Radiation

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

© 2024 SlidePlayer.com Inc. All rights reserved.