'Kj mole' presentation slideshows

Hot Packs and Cold Packs

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Hot Packs and Cold Packs

921 views • 66 slides

Silicon Nitride

Silicon Nitride. Andy Lin MATE 320 6/6/01. Facts of Silicon Nitride. Silicon nitride is one of the strongest structural ceramics (B 4 C, TiC, Al 2 O 3 , ZrO 2 ) In air, silicon nitride rapidly forms a surface silicon oxide layer. Good protection against oxidation

2.9k views • 54 slides

Absorbance of Electromagnetic Radiation

Absorbance of Electromagnetic Radiation. In absorption spectroscopy a beam of electromagnetic radiation passes through a sample. Much of the radiation is transmitted without a loss in intensity. At selected wavelengths the radiation's intensity is attenuated.

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TO and THRU LECTURE 10

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Chapter 7: Atomic Structure & Periodicity

Chapter 7: Atomic Structure & Periodicity. Wave Theory of Electromagnetic Radiation Particle Theory of Electromagnetic Radiation (UV Catastrophe & Photoelectric Effect) Particle and Wave Theories of Matter (deBroglie wavelengths & Uncertainty Principle)

445 views • 27 slides

Chapter 7: Atomic Structure & Periodicity

Chapter 7: Atomic Structure & Periodicity. Wave Theory of Electromagnetic Radiation Particle Theory of Electromagnetic Radiation (UV Catastrophe & Photoelectric Effect) Particle and Wave Theories of Matter (deBroglie wavelengths & Uncertainty Principle)

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Chapter 12 Solutions

389 views • 26 slides

TO LIVE IS THE RAREST THING IN THE WORLD. MOST JUST EXIST. THAT IS ALL.

TO LIVE IS THE RAREST THING IN THE WORLD. MOST JUST EXIST. THAT IS ALL. Exothermic and Endothermic. Every reaction has an energy change associated with it ** Gummy Bear Sacrifice ** Exothermic reactions release energy, usually in the form of heat. Endothermic reactions absorb energy

412 views • 26 slides

Thermochemistry

Thermochemistry. Kinetics (?H) Potential Energy graphs. Thermochemistry. Thermodynamics is the science of the relationship between heat and other forms of energy. Thermochemistry is the study of the quantity of heat absorbed or evolved by chemical reactions.

540 views • 26 slides

Bonding in Solids

Bonding in Solids. Sovay, Jen and Miranda. Overview. Physical properties of crystaline solids, such as melting point and hardness depend on the arrangements of particles and on the attractive forces between them. Molecular Solids.

1.35k views • 19 slides

Chapter 6 Chemical Reactions and Quantities

Chapter 6 Chemical Reactions and Quantities. 6.9 Energy Changes in Chemical Reactions. Reaction Conditions. Reaction conditions for a chemical reaction require collisions between reacting molecules collisions with sufficient energy to break the bonds in the reactants

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Ch. 6: Energy and Thermochemistry

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Chapter 16: Thermodynamics

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#13 p. 229 in the book: What electron configurations do atoms usually achieve by sharing electrons to form covalent b

#13 p. 229 in the book: What electron configurations do atoms usually achieve by sharing electrons to form covalent bonds?. In forming covalent bonds, electron sharing usually occurs so that atoms attain the electron configurations of noble gases. The s and p orbitals

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Ch. 6: Energy and Thermochemistry

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Enthalpy

Enthalpy. Enthalpy (H) ~ heat content (q) @ constant pressure . D H = thermal (heat) energy change = q. Physical process. H 2 O (l) + energy ? H 2 O (g). D H vap = 44 kJ/mole. heat of vaporization. What happens for the reverse process?. D H = - 44 kJ/mole and exothermic.

486 views • 11 slides

Lecture 5 Thermodynamics of Combustion

Lecture 5 Thermodynamics of Combustion. AOSC 434 AIR POLLUTION RUSSELL R. DICKERSON. Wark and Warner Chapter 7,8 Finlayson Pitts & Pitts, Appendix 1 II. Thermodynamics (continued) a) Enthalpy, Bond Energy, and Entropy

386 views • 8 slides

Ionization Energy

Ionization Energy. Jennifer Altman Sadhana Krishnamoorthy Jessica the Omark. Definition yo !. Energy required to remove electron from atom in gas phase Always positive Measured in kJ/mole 1 st , 2 nd , 3 rd ionization energies

230 views • 5 slides