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Evaporation is when liquid in an open container turns into a gas. Different liquids evaporate at different rates than others. The rate of evaporations increases as the temperature increases. Evaporation may be explained by considering the attractive forces involved and the kinetic energy needed to overcome these forces. This process is the opposite of condensation. For a molecule to be converted to gas from a liquid it must have enough energy to overcome its attractive forces. In any group of molecules

A report to investigate how the densities and thresholds of two different types of cutaneous receptors vary dependent on what part of the body tested Abstract The skin detects the modalities of touch and temperature through cutaneous receptors. The aim of this experiment was to examine the nature of these receptors and their distribution across the body. The results showed that out of the four skin areas examined, the greatest density of mechanoreceptors was on the tip of the finger. This was because

Many businesses, industrial factories, and vehicles produce massive amounts of natural gases that affect the world in many ways. These gas particles that move rapidly and constantly collide with the atmosphere. This causes the air on Earth to contain higher kinetic energy due to the fact that more gas particles from the natural gases are colliding with the air particles. The higher kinetic energy results in higher temperature and heating of Earth’s surface. The heating of the Earth’s surface causes

PRESSURE: Pressure can be simply defined as force per unit area and some of the major physical hazards can be related to the effects of Pressure on the diver Pressure = FORCE/AREA N/〖 M〗^2 The pressure on the diver under water is because of two forces acting simultaneously on him. A diver must always be in pressure balance of those forces at any depth which is defined as, The atmospheric weight over the surface of water which changes with altitude (atmospheric pressure) The weight of the water

All objects that have a temperature greater than 0 degrees celsius emit thermal radiation. Thermal radiation is the process by which energy, in the form of electromagnetic radiation, is emitted by a heated surface in all directions and travels directly to its point of absorption at the speed of light; thermal radiation does not need an intervening medium to carry it.Thermal radiation, process by which energy, in the form of electromagnetic radiation, is emitted by a heated surface in all directions

Abstract: One mixture of two unknown liquid compounds and one mixture of two unknown solid compounds were separated, isolated, purified, and characterized by boiling point. Two liquid unknowns were separated, isolated, and purified via simple distillation. Then, the process of an acid-base extraction and washing were used to separate two unknown compounds into two crude compounds: an organic acid and a neutral organic compound. Each crude compound was purified by recrystallization, resulting in a

be heated in a water bath to a known temperature and escape from a flask through a tiny opening (Giunta, 2003). In this situation, vapours are assumed to be obeying the Ideal Gas Law, which is PV = nRT. P is the current atmospheric temperature, measured in atmospheres, V is the volume of the flask, n is the moles of the gas and T is the

Period 1 10/05/15 The Effect of Temperature on Rate of Enzyme Activity of Different Enzymes Abstract/Purpose: The main objective of this experiment was to determine how different factors, such as the type of enzyme and the temperatures that each of the enzymes were exposed to, could affect the rate of enzyme activity. In order to measure this, a potato enzyme and liver enzyme were placed in four different temperatures for 24 hours. Each enzyme was then placed in a test tube with hydrogen peroxide

April 2015 Lab #3: Carbonate Analysis Purpose The volume of carbon dioxide gas produced from a reaction was measured in order to determine what carbonate sample was used. A gas assembly apparatus was used to capture the gas from a reaction between an unknown carbonate and 6M hydrochloric acid; three trials were performed. The mass of the unknown carbonate was determined, and the reaction occurred in a test tube. The volume of gas produced by the reaction was measured, and the partial pressure of carbon

Key Meteorological Data: The determination of the weight of the atmosphere by Torricelli in 1643 was of course the first step in the development of meteorology to the rank of a science. The discovery of the air-thermometer by Sanctorius of Padua in 1590 laid the base of a helpful revolution in the science. Meteorology refers to the science of atmospheric phenomena and study of physical forces in the atmosphere like heat, wind and movement of air. The degree to which air pollutants discharged from