Specific Heat Capacity

Slides:

Advertisements

Similar presentations

Ch. 5 - Energy II. Thermal Energy (p , )  Temperature  Thermal Energy  Heat Transfer.

Advertisements

Specific Heat and Using the Heat Equation

Week – 5 Lesson 2 Learning Objectives: Show an understanding of the term thermal capacity. Describe an experiment to measure the specific heat capacity.

Specific Heat. Names Specific Heat Capacity Specific Heat Heat Capacity.

1 Measuring Heat Energy. 2 Heat Energy that flows from something warm to something cooler A hotter substance gives KE to a cooler one When heat is transferred.

Thermochemistry.

Measuring Thermal Energy Critical Thinking Question: Why do you add a coolant that includes water and ethylene glycol to the radiator in your car rather.

Energy Changes in One Substance. Heating and Cooling Substances Have you ever noticed that it takes practically no time at all for a metal pan to get.

Specific Heat Capacity Thermal Physics Lesson 1. Learning Objectives Define specific heat capacity. Perform calculations using ∆Q=mc ∆θ. Describe how.

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.

1 Thermal Properties of Matter Specific Heat Capacity.

1 Chapter 6 EnergyThermodynamics. 2 Energy is... n The ability to do work. n Conserved. n made of heat and work. n a state function. n independent of.

1 Chapter 8 Thermochemistry. 2 Energy is... n The ability to do work. n Conserved. n made of heat and work. n a state function. n independent of the path,

1 Chapter 6 EnergyThermodynamics. 2 Energy is... n The ability to do work. n Conserved. n made of heat and work. n a state function. ( dependant only.

1 Temperature and Heat Temperature is the measurement of the avg. KE of the molecules in a material. Heat is the transfer of KE from one material to.

Week – 7 Lesson 1 Learning Objectives: Define Specific heat capacity

Thermodynamics & Phase Change. Heat can only do one thing at a time: either change the temperature OR change the state!

Thermochemistry.

Thermodynamics & Phase Change. Heat can only do one thing at a time: either change the temperature OR change the state!

LecturePLUS Timberlake 99 Warm Up A. When you touch ice, heat is transferred from 1) your hand to the ice 2) the ice to your hand B. When you drink a hot.

Specific Heat Capacity The specific heat capacity of a material is the amount of energy needed to raise the temperature of 1kg of the material by 1°C.

Insulation  To understand how insulation works. Double Glazing  Which of the statements about the double glazing are true?  Our windows will keep heat.

Energy in Reaction Some reactions give off energy –Called _________ –Examples: –They feel _______.

Specific Heat Capacity Weather Unit – Science 10.

© Oxford University Press 2011 IP Specific heat capacity of various materials Specific heat capacity of various materials.

Specific Heat Capacity. deals with heat changes that occur during chemical reactions deals with heat changes that occur during chemical reactions Heat.

Balance the following combustion reaction. Also, name the hydrocarbon and draw the hydrocarbon structure. Bell Ringer.

Thermal Energy. Temperature & Heat Temperature is related to the average kinetic energy of the particles in a substance.

Energy Flows From Warmer To Cooler Objects

Thermal Energy  Temperature  Thermal Energy  Heat Transfer.

1 Temperature and Heat Temperature is the measurement of the avg. KE of the molecules in a material. Heat is the transfer of KE from one material to.

CH. 12 Thermal Energy Sec. 12.1: Temperature & Thermal Energy.

Energy and Water Page % of the Earth’s surface is land. 70% of the Earth’s surface is water.

Introduction Thermodynamics. Thermo It is hot Measure of HEAT.  form of energy  depends on amount of matter  total vs. It is cold the same thing!!!

Specific Heat Capacity. Specific Heat Capacity (kJ/kg/°C) The specific heat is the amount of heat (measured in kJ) per unit mass (measured in Kg) required.

Heat Capacity (Specific Heat) Video Questions 1.Describe the HEAT CAPACITY of water. 2.How does sweating cool down the human body?

Energy Transfer Methods of energy Transfer Three ways energy is transferred: 1. Conduction- occurs between objects in direct contact. a. Objects.

What is Heat Topic 4.2 cont.. Joule’s Mechanical Equivalent of Heat Joule determined the amount of work (ENERGY) done on the water in his apparatus and.

Energy Thermodynamics.  The ability to do work.  Conserved.  made of heat and work.  a state function.  independent of the path, or how you get from.

Chapter 9 Heat!. Temperature and Thermal Energy Although closely related, these things are NOT the same thing!!!!

Worksheet Chapter Key. 1. Which substance must have more energy removed from it to undergo a ten degree temperature drop? One with a low specific.

Grade 7 Science Unit 2 Heat is transferred from one place to another by three different processes. Chapter 6.

Specific Heat Capacity Or the amount of energy needed to heat substances up.

Thermal Energy Temperature & Heat 1. Temperature is related to the average kinetic energy of the particles in a substance.

Heat energy is measured in units called joules or calories. 1 calorie is the amount of heat energy needed to raise the temperature of 1.0 g (mL) of water.

Specific heat capacity. Consider 2 beaker’s filled with paraffin and water If both are heated on the same heat source, over the same amount of time, the.

Thermochemistry Thermo = heat Chemistry = study of matter.

Specific Heat Quantity of energy needed to increase the temperature of one gram of a substance by one degree Celsius/Kelvin Every substance has its own.

 Different substances require different amounts of heat to change their temperature.  Objects that require more energy have a high heat capacity like.

Specific heat capacity Nelson p STAWA p26.

Heat and Heat Technology. Temperature  …is the measure of the average kinetic energy of the particles in an object.  - the faster the particles, the.

Aim: What is thermochemistry?

Klein Forest High School-Chemistry Jarrod G Collins, M.Ed.

Energy and Fossil Fuels

Specific heat capacity ‘c’

2nd Law of Thermodynamics:

What is it and how do we measure it?

Heat Capacity and Specific Heat

Specific Heat Capacity

* Thermal Energy Temperature Heat Transfer

Ch. 5 - Energy II. Thermal Energy (p , ) Temperature

Section 16 Thermal Energy.

Heat, Temperature, Thermal Energy

Specific Heat Capacity

Thermochemistry.

The Particle Model, Temperature and Thermal Energy

Do Now When the bell rings After the bell (2 min) In your seat:

Energy Calculations ∆Q = m x c x ∆θ.

Presentation transcript:

Specific Heat Capacity

Drum Roll please…. Winners from our Thermos Challenge determined by the judges are: 701: 3rd Place: Kate (The Hot and Cold) 2nd Place: Tyler (The Quarter Litre Flask) 1st Place: Matheas (Heat-o-Tron 9000) Honourable Mentions: Matthew (The X model); Jayden/Ty/Jayden (The Prothermos); Aicha/Maya ( The Burst of Heat) 702: 3rd Place: Jun/Maximo (Thermol) 2nd Place: Julia/Saeyoon (Robotomos) 1st Place: Rudy (The Heavy Weight) Honorourable Mentions: Elizabeth (Warmus Thermos); Emma (Frigid & Fiery); Tobias (Thermosatron 3000)

Calculating Thermos Efficiency Given in °C/min Calculation: °Cfinal - °Cinital = -____°C/min total time (mins) Ex: (65°C-78°C)= -13°C = -0.43°C/min 30 mins 30m Please show this calculation on the back of your Thermos testing sheet- hand in brochure/testing sheet with name on it to pass in bin! Thermos can be taken home Tuesday!

What is Heat Capacity? Heat Capacity: a number that tells you how much thermal energy must be added to the object to make its temperature increase by 1°C Large (#)= large amount of heat is required to make its temperature increase a little (eg: water) Small (#)= small amount of heat is required to make its temperature increase (eg: sand)

Specific Heat Capacity Temperature change depends on how much of material you are trying to heat up Specific Heat Capacity: the amount of energy you must add to a standard amount of a material (1g or 1Kg) to increase its temperature by 1°C)

Example: Copper and Water Specific Heat Capacity of Cu: 0.39J/gºC It takes 0.39J (J=joules, a measurement of energy) to warm 1g of copper 1ºC To warm it by 2ºC you need 2x0.39J=0.78J Specific heat capacity of water: 4.186J/gºC It takes 4.186J of energy to warm 1g of water 1ºC

Specific Heat Capacity- Water Water has a high heat capacity, so it can store a lot of heat, and it takes a long time to heat up (compared to other substances) and a long time to cool off In other words, water can absorb a lot of heat without raising its temperature very much (good as a cooling system of engines/other systems)

Specific Heat Capacity of Common Materials

To Quote Rhianna: Work, Work, Work, Work, Work, Work Hot Stuff! Think About it! Worksheet: Answer questions on separate piece of paper (Corrected as a class) ICA: Specific Heat Capacity To be done on your own- put in pass in bin with name on it when completed