1 Class XII Chemistry Ch 5: Surface Chemistry Chapter Notes Top Concepts / Key learnings: 1. 2. 3. 4. 5. 6. Adsorption: The accumulation of molecular species at the surface rather than in the bulk of a solid or liquid is termed as adsorption. Adsorbate: The substance which is being adsorbed on the surface of another substance is called adsorbate. Adsorbent: The substance present in bulk‚ on the surface of which adsorption is taking place is called adsorbent. Desorption: The process of removing an
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of the Sun are known. Horizontal Shadow Angle (HSA) This is the horizontal angle between the normal of the window pane or the wall surface and the current Sun azimuth. The normal to a surface is basically the direction that surface is facing - its orientation. Figure 1 - The derivation of horizontal shadow angle (HSA). If the orientation of the surface is known‚ then HSA is simply given by: Vertical Shadow Angle (VSA) The VSA is more difficult to describe. It is best explained as
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9130Taft-Pierce Model 9131Taft-Pierce Model 9132Taft-Pierce Model 9133Taft-Pierce Model 9134 The accuracy in the procedure is specified by Federal Specification A-A-51150. It states that the V-groove should be square and parallel to all surfaces within .0003 inch. All other surfaces should be square within .0002 inch. For further information reference the following: A-A-51150 Federal Standard for Sine V-BlocksInspection and Gaging by Kennedy‚ Hoffman & Bond published by Industrial Press CALIBRATION PROCEDURE
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Surface Waves: Understanding its movements I. Introduction We treat here an important wave phenomenon‚ the surface wave. It occurs in many physical systems both mechanical and electromagnetic. Mechanical surface waves can exist at the interface between two media with different densities such as the oceans and air. Ordinary sea waves and tsunamis are surface waves. Seismic events can produce both longitudinal and shear waves at the earth’s surface‚ resulting in earthquakes. Electromagnetic surface
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SuperHydrophobic Surface Fabrication The research plan must include the following: I. Statement of the Problem/s: This study aims to Specifically answer these questions: 1. What chemicals or substances would be effective to use? 2. Where else can we apply the monolayer‚ other than plastic‚ using the same procedures? 3. How long will this effect last? 4. What liquids can it repel besides water? II. Hypothesis: a. There is a significant difference in the results using varied
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The pieces concentrate on the relationship between biological systems and changing architectural design approaches and methods through their history‚ method and development. In his article Bioconstructivisms‚ Detlef Mertins focuses on the relation of emerging approaches for architectural design in the last century to the explorations and new understandings in science. Addressing Otto’s design on complex and dynamic curvature structures and showing a beginning for a kind of new era; the writer
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Introduction Urbanization is exponentially growing in the world while rural living is decreasing; over half the world’s population lives in a urban areas (MeyerLindenberg‚ 2015). Urban being defined as an constantly builtup area with 50‚000 or more residents with at least 1‚000 residents per square miles as defined by the United States Census. Urbanized living is accompanied by many risk factors that are common to the development of mental health issues and disorders (Carol Strike‚ Paula Goering
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Surface Water Pollution Freshwater makes up less than three percent of earth’s water‚ but is the source of virtually all drinking water.55 percent of that water comes from reservoirs‚ rivers‚ and lakes‚ These sources‚ called surface water‚ are vulnerable to pollution discharged out of pipes and precipitating out of the air but the primary source of their pollution today is runoff‚ pollutants washing off the land. These nonpoint or scattered sources are not easily traceable. fertilizers used
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List of ideas: Mr. Baumer was a store owner Slade like to drink alcohol Slade did not like to pay his bills Al worked for Mr. Baumer Slade could not read Slade was a freighter Slade steels whiskey Outline: A. Bargain tells the story of a man named Slade who could not read. Mr. Baumer ‚ a store owner‚ hires Slade to deliver his goods for him. Slade is found dead. B. Details: 1. Mr. Baumer tries to deliver a bill to Slade 2. Slade
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Life Off-Line When my family’s Internet provider had some mechanical problems that interrupted our service for a week‚ my parents‚ my sister‚ and I thought we would never make it‚ Getting through long evenings without streaming movies‚ emails‚ twitter updates‚ and internet searches seemed impossible‚ We soon realized‚ though‚ that living off-line for a while was a stroke of good fortune. It became easy for each of us to enjoy some activities alone‚ to complete some postponed chores‚ and to spend
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