Change of Volume of a Gas Planning- Aim * Determine how the volume of a gas changes with the temperature for a fixed amount of gas and pressure. * Determine absolute zero Hypothesis ---------- Volume is directly proportional to Temperature ---------------------------------------------- Preliminary Test ---------------- A preliminary experiment wsa carried out to test our apparatus. In this test we used an alcohol thermometer to see if there was any change in volume
doctrine that the mind is a blank slate is the simple mathematical fact that zero equals zero” —Steven Pinker Zero is one of the greatest gifts ever bestowed upon humankind. It is basis for modern day calculus, statistics, financial accounting, and computers. It is believed that zero originated in three separate places—Mesopotamia, India, and Mesoamerica. In Mesopotamia the first recordings of zero was in 300 BCE. For them, zero was just a placeholder between numerals in a number such as 502 and never
PURPOSE The purpose of the experiment is to determine the temperature, in degrees Celsius, at which all particle motion stops (absolute zero). MATERIALS Before assembling the materials, put on safety glasses FIRST, then prepare a clean, dry workspace (away from food) with all of the necessary materials. 1/8 cup water small pan of ice water 1 empty aluminum soda can Tongs or oven mitt Borosilicate glass beaker (600 mL) #1, 1-hole rubber stopper 6”
Temperature is thermodynamic property of objects. It is an “indirect measure of the kinetic energy of the particles that make up matter” (Lerner 2008). Temperature determines the direction of the flow of energy between two objects. When they are put in contact with each other, the faster-moving molecules of higher temperature object will collide and increase moving speed of slower-moving molecules of the lower temperature object. This process stops when both objects have the same average molecular
you are wishing to cool. Because the photons colliding into the partials slowed their velocity which is essentially the same as heat for a molecule you can get the matter down to a few billionths of a degree above absolute zero which “is the minimum possible temperature” (Absolute zero) at which all movement stops. When you fire photons (light partials) into this ultra-cold substance light can slow to thirty eight miles per hour. The tell-tale sign that a substance is in BEC is when the millions
standard for scientific temperature measurement is the Kelvin scale. On the Kelvin scale absolute zero has a value of zero degrees on the thermometer. In theory no substance can be lowered to or below zero degrees Kelvin or absolute zero. Temperatures in cryobiology range from zero degrees Celsius--water freezes--to just above negative two hundred and seventy three point sixteen degrees Celsius--absolute zero. The word "Cryogenics" comes from the Greek word “kryos” meaning cold (“Cryogenics” Raintree
flow of electrons begins, it essentially goes on forever, making it an important material to humans. Superconductivity was discovered by a Dutch scientist by the name of Heike Kamerlingh Onnes in 1911. While researching properties of materials at absolute zero, this man found out that certain materials lost its resistance to the flow of electrons. For years to come, his discovery was at the head of theoretical interest. The only problem though, was that people at that time could not even think of a way
Figure of the Earth." He used this essay as a source and inspiration for ideas all his life and won an award from the University of Glasgow in Scotland. Kelvin remained at the University for the rest of his working life. Kelvin first defined the absolute temperature scale in 1847, which was later named after him. In 1851 he published the paper, "On the Dynamical Theory of Heat", and in the same year was elected to the Royal Society. This work contained his ideas and version of the second law of thermodynamics
Warming Up the Ball Before Playing Squash Ball Hypothesis Warming up the squash ball helps it bounce higher. Variables: Type of Surface Height of Drop - Independent variable Temperature of Ball Material of Ball Acceleration Due To Gravity Mass Angle of Surface Air Resistance Diameter of Ball Height of Bounce - Dependant Variable Plan I aim to find out if warming up squash balls before bouncing them affects the height of its bounce. I will need a squash
The Effect of Temperature on an Enzyme's Ability to Break Down Fat Aim: To investigate the effect of temperature on an enzyme’s (lipase) ability to break down fat. Hypothesis: The graph below shows the rate increasing as the enzymes get closer to their optimum temperature (around 35 degrees Celsius) from room temperature. The enzyme particles are moving quicker because the temperature increases so more collisions and reactions occur between the enzymes and the substrate molecules
Cellular Respiration Lab Report I.Introduction In this lab we are measuring the amount of oxygen used in both germinating and non germinating peas. We are measuring the oxygen consumption by taking a reading of a respirometer submerged in two water baths. The first bath will be cold water and the second warm to determine the effect of temperatures on oxygen consumption. Our negative control will be glass beads to measure to increase or decrease in atmospheric pressure or temperature changes. There
The Difference in Energy Release of Various Alcohols In this experiment, I plan to find out the difference in energy release between different sorts of alcohols. To do this I will test how much alcohol is required to increase the temperature of 100ml of water by 30 degrees Celsius. Obviously, many factors may affect my results, therefore making them less reliable. To improve my results, I will carry out some preliminary research to see if I can improve the reliability and accuracy. Please
Investigating the Standard Enthalpy of Potassium Nitrate Stability --------- Stable. Strong oxidizer - contact with combustible material may cause fire. Incompatible with combustible materials, and strong reducing agents. Toxicology ---------- Harmful if swallowed. May cause reproductive disorders. ------------------------------------------------------- Hazard: oxidizing ----------------- Aim The aim of this experiment is to determine the crystallisation temperature
Gallium? What is that? Well I will get to that but first let me tell you why I chose to research the element known as gallium. I became interested in gallium after YouTube suggested that I watch videos about gallium. Then as I watched I learned that gallium; a post-transition metal, will turn into a liquid as soon as a person touches it. Cool right? That's exactly what I thought. I found it extremely odd. Usually metals are widely known to have intense strength and can bare a lot of heat and beating
The Physics of the Pressure Cooker Generally, water boils at 100 degree Celsius (212 degree Fahrenheit) in normal room temperature and pressure. If somebody boils the water for five minutes or for twenty minutes, the temperature will always remain the same. The pressure of air affects the boiling point of water. If air pressure is changed, then the boiling point will also change according to it (How does”). This is why a pressure cooker cooks food quickly as the pressure of the steam in the
My project is on the reaction time of a human. I tested 3 subjects using two computer tests. Before the tests each subject took their temperature with a digital thermometer. They recorded the temperature and started the test. I did this project because I always wanted to know why at some points of the day I was very slow at doing things and at some points I did really well and did some things fast. I wanted to know when and why I would be at my slowest. I believed that the younger the person the
Introduction: Anna Garcia is a thirty eight year old Hispanic women. She weighed 165 pounds and was 64 inches tall. She was married to Alex Garcia, but went through a nasty divorce. Anna has no children and one dog. A phone call came in at 9:45 AM on the hot morning of August 14th. Anna’s neighbor, Doug Greene let the police know he saw her walking her dog around 6:30AM yesterday morning, but heard her dog barking for the last two hours. Both the police and the EMT arrived at 9:56AM, and had
Specific Heat of Solids I. Objective The objective of the study is to explain, measure and better understand the specific heat of copper and lead using the method of mixtures. II. Theory Heat is a form of energy it is either expressed in joules, calories, or kilo-calories According to the law formulated by the French chemists Pierre Louis Dulong and Alexis Thérèse Petit, the specific heat of solids which is characterized as the amount of heat required to raise the temperature of one gram
The Effects of Temperature on the Rate of Clotting Milk and Rennet Introduction ------------ The following experiment investigates the effects of different temperatures on a mixture of rennet and whole milk. On having the choice between testing the mixtures reactions at various temperatures, or testing the mixture with various amounts of concentration of rennet, my partner and I decided upon the first option. We made this decision as we felt it would be valuable to our scientific knowledge
Investigation into the Factors that Affect the Enthalpy Change During a Displacement Reaction The Task -------- To investigate the factors affecting the enthalpy change during a displacement reaction. Background Knowledge ==================== In this investigation a displacement reaction will be observed. A displacement reaction occurs when more reactive metal displaces, (or removes) a less reactive metal from a solution of its salt. Also known as chemical bullying because