current century, the primary energy sources being used have been harmful to our environment, and are nonrenewable. These energy sources are not going to be on earth forever, so it would be beneficial to mankind to find a new primary source of energy to replace the old ones. Solar power is one of the most abundant energy sources we have on Earth, and each year it is becoming more and more popular. With the technological advances in the modern world, solar power energy has the potential to become…
For example, a blown up balloon can either expand or shrinks depending on the collisions/pressure inside. When the temperature gets higher the particles move faster because they have more kinetic energy which causes more collisions leading into more pressure expanding on the balloon. Same goes for a cooler temperature, but the opposite happens, the particles move slower which causes less collisions, leading to less pressure pushing against the balloon…
the article: Quantitative analysis by Auger Electron Spectroscopy 1 Introduction When the outer electron fills the vacancy left by an ionized electron in the inner shell, the released energy can be passed to another outer electron that causes further emitting of an electron with characteristic energy, this is the basic principle of the Auger electron spectroscopy (AES) [1]. Nowadays, AES is almost an indispensable tool in nanoscience research for its high surface sensitivity (can detect…
rate of amylase reaction. Research title The effect of temperature on amylase activity. Word count-1025 Background research Enzymes are catalysts which speed up reactions in living organisms. Enzymes function by decreasing the activation energy for a reaction. Amylase is an enzyme found in human saliva and catalyses the hydrolysis of starch .Amylase like all other proteins have secondary and tertiary structures which are affected by temperature, pH and other factors. Due to the fact…
Material selection The main purpose of outer material is to provide enough insulation. So minimum heat transfer coefficient is required for the outer material. Other selection criteria are: 1. Cost 2. Environment friendly 3. Availability Alternatives along with heat transfer coefficient are: • Wood : 0.19 w/m/k • Plastics: 0.29 w/m/k • Polystyrene foam: 0.04 w/m/k • Polyurethane foam: 0.03 w/m/k From the above alternative more suitable outer materials are Polystyrene foam and Polyurethane…
Heat conduction mechanism represents the energy loss at the particle surface due to the collisions with the surrounding gas molecules. There is no simple theory to explain the cooling mechanism of the particles. During the laser pulse, the particle achieves the peak temperature and emit thermal signal. After the laser pulse duration, the particle starts to cool down. The cooling of the particles is characterized by a decay function. The decay of LII signal provides information about the primary…
The storage modulus, (E՛) is proportional to the energy stored per cycle, the loss modulus; (E″) is proportional to the lost or dissipated energy per cycle. The storage modulus characterizes the elastic behavior of the material, and the loss modulus characterizes the viscous behavior of the material. The ratio of energy dissipated to energy stored is the tangent of the phase angle, δ, called tanδ, which is given by tanδ=(E^" (ω))/(E^' (ω)) In…
calorimeter heat energy was pushed out. Then we took it another step further by modifying our calorimeter to capture even more energy. The overall purpose was to capture as much energy as possible. “Energy is the ability to do work, or the ability to elicit change in matter.” (Castro) Energy can be defined in different ways as well. Kinetic energy is energy that results from movement. (Castro) An example would be water flowing through a hydro dam. (What is…) Potential energy is energy that is…
The procedure of the experiment includes two parts: 1. Determination of the Freezing Point of Glacial Acetic Acid: to record the temperature of acetic acid every 30 seconds until it reach 300 seconds (5 minutes). 2. Determination of the Molar Mass of an Unknown Compound: to record the temperature of the mixture between unknown solid and glacial acetic acid. After that, put the ice-water mixture into the tube and record the temperature every 30 seconds. Pre lab questions: 1. Solute: dissolved…
Power Plant. His job place always dealing with radiation around him and his co-workers. But we don’t know deep details about radiation. Let’s start by talking about the thermal radiation. Thermal radiation is energy where it transfers by the emission of electromagnetic waves. The waves hold energy away from releasing object. For a normal temperature, the radiation is in the infrared region of the electromagnetic spectrum. The relationship ,conducting the net radiation from a hot object is…