Chemistry Terms Essay

Submitted By jdv45

Words: 499

Pages: 2

Open Document

Chapter 13
13.1
Kinetic energy- The energy an object has because of its motion.
Kinetic theory- All matter consists of tiny particles that are in constant motion.
-Particles in a gas are small, hard spheres with an insignificant volume.
-The motion of the particles in a gas is rapid, constant, and random.
-All collisions between particles are perfectly elastic. Kinetic energy is transferred without loss from particle to particle. The total kinetic energy is constant.
Gas pressure- Results from the force exerted by a gas per unit surface of an object.
-Gas pressure is the result of billions of rapidly moving particles colliding.
Vacuum- An empty space with no particles and no pressure.
Atmospheric pressure- The collisions of atoms and molecules in air with objects. Atmospheric pressure decreases as you increase in elevation.
Barometer- A device used to measure atmospheric pressure.
-1atm = 760mm Hg = 101.3 kPaPascal (Pa)- The SI unit of pressure.
Standard atmosphere (atm)- The pressure required to support 760 mm of Hg in a mercury barometer at 25 degrees Celsius.
-The average kinetic energy of the particles in a substance is directly related to the substance’s temperature.
13.2
-The interplay between the disruptive motions of particles in a liquid and the attractions among particles determine the physical properties of liquids.
Vaporization- The conversion of a liquid to a gas or vapor.
Evaporation- Conversion of a liquid to a gas or vapor at the surface of a liquid that is not boiling.
-During evaporation only molecules with a certain minimum kinetic energy can escape.
-Liquids evaporate faster when heated.
Vapor pressure- A measure of the force exerted by a gas above a liquid.
-Vapor pressure increases as temperature increases.
Boiling point- The temperature at which the vapor pressure of the liquid is just equal to the external pressure on the liquid.
Normal boiling point- The boiling point of a liquid at a pressure of 101.3 kPa.
13.3
Melting point- The temperature at which a solid changes into a liquid.
Freezing point- The

Growth Mindset Analysis

fixed mindset occurred last and this term in my chemistry course. Last term for my chemistry class, I had a fixed mindset. I went in thinking every concept I was being taught, I had to know from previous experience in chemistry courses or it would be too late to learn. Through believing in my inability to learn something new, I set myself up for not performing the best I could on…

Words 806 - Pages 4

bob chem Essay

Chemistry Ch. 1-2 Chapter 1 Introduction to Chemistry Key Terms Branches of Chemistry Chemistry- the study structure, properties, and composition of substances, and the changes that substances undergo Organic Chemistry- the study of compounds that contain carbon and hydrogen, studies hydrocarbons Inorganic Chemistry- studies all the elements and their compounds except carbon Analytical Chemistry- concerned with the separation, identification and composition of matter. There are two types…

Words 534 - Pages 3

week 1 paper

Chemistry in Our Lives Abby Hackenberger Chemistry 110 June 8th, 2015 Chemistry in Our Lives As we all have discovered in this first week of class, chemistry is visible in all of our lives. After reviewing all of the information for this course, it is very apparent that none of us realized how much this is true. There are the obvious pieces of my career that were apparent to me such as administering medications at work as a nurse and understanding their pharmacokinetics, discussing treatments…

Words 835 - Pages 4

Chemical Reaction and Energy Changes Essay

WestonCI@tdsb.on.ca ------------------------------------------------- SCH4U Chemistry, Grade 12, University Preparation ------------------------------------------------- Course Outline Teacher: Mr. Shopman Room: 331 ------------------------------------------------- Description/Rationale This course enables students to deepen their understanding of chemistry through the study of organic chemistry, the structure and properties of matter, energy changes and rates of reaction,…

Words 574 - Pages 3

Biology Personal Statement

Biology degree in an excellent standing is necessary for me because my long term-goal of attending medical school is dependent on it. Biology major being one of the hardest majors out there has many difficult pre-requisites. These pre-requisites include classes ranging from humanities, mathematics and sciences. For example, to be considered for Biology major at UNF, I must take Chemistry 1 and 2, Biology 1 and 2, Organic Chemistry 1 and 2, two math courses, three communication courses and couple humanities…

Words 1232 - Pages 5

A Brief Note On The Welch Chemistry Hall

Welch Chemistry Hall The first exhibit hall I visited was the Welch Chemistry Hall. There were many small sections in the hall about the different things we learned about in the chemistry chapter and in the DNA chapter. Some of the things I saw about chemistry was about suspensions and solutions, bioluminescence, electrolysis of water, the periodic table, matter in motion, and the pH scale. They also had a section about the double-helix stand. Each of these sections had a few small paragraphs…

Words 558 - Pages 3

Essay on Eli Lilly

profitability.” To cope with this huge cost and to decrease time to market, mergers and acquisitions are a common trend in order to increase economies of scale. A lot of firms are also incorporating technologies like genetic engineering, combinatorial chemistry and high throughput screening in their processes.…

Words 2948 - Pages 12

The neuroscience of the brain Essay

biology. However, it is currently an interdisciplinary science that collaborates with other fields such as chemistry, computer science, engineering, linguistics, mathematics, medicine and allied disciplines, philosophy, physics, and psychology. It also exerts influence on other fields, such as neuroeducation[2] and neurolaw. The term neurobiology is usually used interchangeably with the term neuroscience, although the former refers specifically to the biology of the nervous system, whereas the latter…

Words 901 - Pages 4

Labs: Metal and Nr Essay

elements. Alloying a metal is done by combining it with one or more other metals or non-metals that often enhance its properties. For example, steel is stronger than iron, its primary element. The physical properties, such as density, reactivity. The term alloy is used to describe a mixture of atoms in which the primary constituent is a metal. The primary metal is called the base, the matrix, or the solvent. The secondary constituents are often called solutes. If there is a mixture of only two types…

Words 723 - Pages 3

Stimulant Medication

There are many short-term and long-term effects of stimulant medications used to treat ADHD. While most of the long-term effects do not affect the child until later in life, there are still short-term effects of medications that are prevalent while the child is taking the medication. Ray Boorady (2016) has listed many side effects when children with ADHD are treated…

Words 922 - Pages 4