'Bond energies' presentation slideshows

Final Exam F 12/11 9 am We have the room until 12 pm.

Final Exam F 12/11 9 am We have the room until 12 pm. Review Session???. Some molecules have electron-dot structures that do not satisfy the octet rule. Some have an odd number of electrons, such as NO. Other molecules either have too few or too many electrons around the central atom.

1.19k views • 103 slides

THERMOCHEMISTRY AND THERMODYNAMICS

THERMOCHEMISTRY AND THERMODYNAMICS. Energy (E). The ability to do work or produce heat ; the sum of all potential and kinetic energy in a system is known as the internal energy of the system. Potential energy.

798 views • 70 slides

Boron (p102)

5.58k views • 65 slides

Chemical Reactions Alter Arrangements of Atoms

Chemical Reactions Alter Arrangements of Atoms. Section 7-1. Atoms interact in chemical reactions. How does a chemical reaction produce a new substance? By changing the way the atoms are arranged. Bonds between atoms are broken and new bonds form. This happens when particles collide.

1.01k views • 58 slides

Chapter 8

Chapter 8. Covalent Compounds. Covalent Bonds. Sharing Electrons Covalent bonds form when atoms share one or more pairs of electrons nucleus of each atom is attracted to electron cloud of other atom neither atom removes an electron from the other. Covalent Bonding. 8.1 Covalent Bonds.

684 views • 49 slides

Petroleum Generation

Petroleum Generation. Petroleum Geology Class 745 Spring 2002. Istvan Csato University of South Carolina Department of Geological Sciences. I. Organic Matter. II. Petroleum Generation. III. Source Rock Evaluation. IV. Thermal Maturation Models. Sequence Stratigraphy.

1.17k views • 43 slides

Chapter 9

Chapter 9. Models of Chemical Bonding. A general comparison of metals and nonmetals. Figure 9.1. Astatine may be a metalloid but it is radioactive. BASIC CHEMICAL BONDING. Atoms form bonds in order to complete their outer shells of electrons

722 views • 42 slides

Chapter 9

Chapter 9. Models of Chemical Bonding. A general comparison of metals and nonmetals. Figure 9.1. Astatine may be a metalloid but it is radioactive. BASIC CHEMICAL BONDING. Atoms form bonds in order to complete their outer shells of electrons

658 views • 42 slides

Heat from Reactions

Heat from Reactions. In this presentation you will:. explore how energy is produced and needed for reactions. identify how to determine whether a reaction is endothermic or exothermic. apply thermochemical energy equations. Next >. Reactants. Products. Introduction.

647 views • 39 slides

Unit 5: Bonding

541 views • 29 slides

10.8 Bond Order and Bond lengths Bond length estimation. 10.9 Bond Energies

718 views • 20 slides

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.

505 views • 11 slides

Study guide for Part 1 of Final Exam

Study guide for Part 1 of Final Exam. A 1000 watt iron produces 1000 joules (1 kilojoule) of energy per second. How many kilocalories of energy is generated in one hour? (1 calorie=4.184 joules) 1000 joules|1 cal | kilo |60 sec|60 min= 860 kcal sec |4.184 J| 1000 |1 min |1 hr

286 views • 11 slides

Chapter 4 (CIC) and Chapter 5, 8 (CTCS)

283 views • 11 slides

Chemistry 6440 / 7440

Chemistry 6440 / 7440. Potential Energy Surfaces. Model Potential Energy Surface. Potential Energy Surfaces. Many aspects of chemistry can be reduced to questions about potential energy surfaces (PES) A PES displays the energy of a molecule as a function of its geometry

573 views • 10 slides

Metallic Bonds and Bond Energy

318 views • 9 slides

What happens to thermal (heat) energy?

What happens to thermal (heat) energy?. When objects of different temperature meet: Warmer object cools Cooler object warms Thermal energy is transferred q warmer = -q cooler specific heat x mass x ?T = specific heat x mass x ?T warmer object cooler object.

230 views • 9 slides

Question 1

What is the name and symbol of the unit of energy used in energy problems?. Question 1. Is energy taken in or given out when bonds break?. Question 2. Are all bond energies the same?. Question 3. Does this energy level diagram show an exothermic or an endothermic reaction?.

178 views • 8 slides

Enthalpy and Bond Energies

Enthalpy and Bond Energies. For reactions: a. With simple molecules or atoms b. That occur only in the gas phase, with little attraction between particles. The change in enthalpy for a reaction can be estimated using Bond Energies.

712 views • 6 slides

Heat of Reaction

360 views • 3 slides