'Heat needed' presentation slideshows

Energy in Atmosphere

Energy in Atmosphere. Part 1. Atmosphere Formation. Ancient volcanic eruptions released gases into atmosphere Ammonia, Nitrogen , CO 2 , CO, Sulfur, Methane, Hydrogen Water was formed ( meteorites released water when collide w/ Earth ) Algae formed in oceans

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Video 6.1

Video 6.1. Q=mc ? T. Table I. Exothermic reactions release heat and have negative values. Example : When Carbon and Oxygen react they release 393.5kJ of heat per mole reacted. Endothermic reactions absorb heat and have positive values.

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CHAPTER 4

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Whiteboard Work

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11 Heat

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THE QUANTITY OF HEAT The thermal energy lost or gained by objects is called heat.

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 of one gram of water through one Celsius degree. The mechanical equivalent of heat is given by: 1 cal = 4.186 J.

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Heating and Efficiency

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Thermochemistry

Thermochemistry. Thermochemistry: Study of energy changes that occur during chemical reactions and changes in state Chemical Potential Energy: Energy stored in chemical bonds of a substance. What is heat, how does it flow?.

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Chp 12

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Specific Heat

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15 Temperature, Heat, Expansion

15 Temperature, Heat, Expansion. Temperature & Heat Internal Energy & Specific Heat Homework: RQ: 1, 2, 7, 8, 10, 12, 15, 21, 24. Temperature. T ~ Ex: hammered metal Expansion with T increase. Superheating. Mythbusters Instant coffee. Water Expansion.

269 views • 12 slides

15 Temperature, Heat, Expansion

15 Temperature, Heat, Expansion. Temperature & Heat Internal Energy & Specific Heat Homework: RQ: 1, 2, 7, 8, 10, 12, 15, 21, 24. Temperature. T ~ Ex: hammered metal Expansion with T increase. Superheating. Mythbusters Instant coffee. Water Expansion.

236 views • 12 slides

Specific Heat

163 views • 12 slides

15 Temperature, Heat, Expansion

15 Temperature, Heat, Expansion. Temperature & Heat Internal Energy & Specific Heat Homework: RQ: 1, 2, 7, 8, 10, 12, 15, 21, 24. Temperature. T ~ Ex: hammered metal Expansion with T increase. Superheating. Mythbusters Instant coffee. Water Expansion.

132 views • 12 slides

Thermochemistry

Thermochemistry. Study of heat in chemical reactions. Heat will travel between a system and its surroundings Heat is measured in Joules (J) Metric ? English: BTU (British Thermal Unit) 1 BTU = 1.06 kJ.

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Lecture 23: Heat

Lecture 23: Heat. Internal Energy Heat Specific Heat Latent Heat Phase Diagrams. Internal Energy. Energy of all molecules including: Random motion of individual molecules <K tr > = 3/2 k T for ideal gas Vibrational energy of molecules and atoms

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January 11, 2010

January 11, 2010. Learning Goal Clarify HW from this weekend Understand the concept of specific heat capacity In-Class Activities Semester 1 Review Quiz Pre-Lab Background Moodle Clarification HW Anything that did not get done this weekend! Specific Heat Capacity Pre-Lab

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Daily Science pg. 40

Daily Science pg. 40. Convert the following temperatures: 45 o C into Kelvin 45 o C into Fahrenheit 309 K into Fahrenheit 98 o F into Kelvin 299 K into Celsius 8 o F into Kelvin

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CALORIMETRY

CALORIMETRY. Calorimetry : measurement of heat changes The heat transferred is proportional to the mass of the object (m) specific heat capacity ( Cp) temperature change ( ? T) Heat has the symbol q and is calculated using q = m ? TCp. Specific heat ( s )

682 views • 7 slides