A critical point happens when a substance has a high enough temperature and pressure that both liquid and gas can exist at the same time. This state is called a critical point. Now‚ when a state of matter changes from one state to another is called a phase shift. Phase shifts are extremely important and most commonly observe phase shifts daily. For an example‚ when water freezes into ice‚ or the water in the shower turns to steam. To begin to start describing how a phase shift works we must understand
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For Lab 1‚ my partner and I will be demonstrating the law in which connects the period of the pendulum‚ expressed as T‚ to the length of the string‚ expressed a L. The system the lab will be based on will include a pendulum with a weight of W suspended at a fixed point by the string with a variable length of L and an angle theta to be measured using a protractor. The variable T will be measured as the period of time needed for the weight of the pendulum to swing back and forth once. For part 1 of
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Phase Change Lab Ha Min Noh Ms. D Chemistry February 6‚ 2016 Question How does time relate to the change in temperature of H2O as it changes phases from ice to water to gas? Hypothesis If the time which H2O stays on the hot plate increases‚ then the temperature of H2O will increase and the phases from ice to water to gas will change because the heat is a source of energy to change the physical states. Background Ice is a solid form of H2O and water is a liquid form of H2O. The gas form of H2O
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How would the following errors affect your calculated value of R? Explain your reasoning. If some air accidentally entered the eudiometer when it was transferred to the tall graduated cylinder‚ then the value of R would increase. This is because in my manipulated gas law equation‚ R=PVnT‚ volume is on top‚ in which if it’s value increases‚ then the value of R will also increase. And because volume is directly correlated by the how much gas is in the eudiometer‚ the more gas in the eudiometer‚ the
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The results shown on the graph show that there is a strong positive correlation between the average rate of conductivity and the surface area: volume ratio. As the surface area of the Agar cube increases‚ the rate of conductivity will steadily increase‚ too. The trend line of the graph shows as an exponential graph because at one point there will be no more conductivity due to too small or too big Agar cubes. A difference can be seen in the average rate of conductivity depending on surface area
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Mathematicians and scientists call a quantity which depends on direction a vector quantity‚ and a quantity which does not depend on direction is called a scalar quantity. Vector quantities have two characteristics‚ a magnitude and a direction. Scalar quantities have only a magnitude. When comparing two vector quantities of the same type‚ you have to compare both the magnitude and the direction. For scalars‚ you only have to compare the magnitude. When doing any mathematical operation on a vector
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EXPERIMENT 2 Title : Shear Force and Bending Moment Objective : To determine the shear force and bending moment when concentrated load‚ symmetrical load and non symmetrical load are applied Introduction The shear force (F) in a beam at any section‚ X‚ is the force transverse to the beam tending cause it to shear across the section. The shear force at any section is taken as positive if the right-hand side tends to slide downwards relative to the left hand portion. The negative force
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Energy revisited … From the molecular view there exist three general view‚ forms of energy: Intermolecular Potential energy: It is associated with the forces between the molecules. Molecular Kinetic energy: It is associated with the translational velocity of individual molecules. Intramolecular energy: It is associated with molecular and atomic structure and related force 2 Low Density Gas • A At very l low d densities‚ the ii h average distances between molecules are very l l l large and
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Abstract: This report will show the acquired understanding of the refrigeration cycle by using first and second laws of thermodynamics. In order to analyze this system several assumptions where made such like an isentropic process at the compressor an isenthalpic expansion in the throttling valve. Diagrams will be provided to depict these thermodynamic processes in addition to computing the heat transferred to the system and the work input to the compressor. Table of Contents Abstract .
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Abstract The diameter and mass of a steel ball was measured and recorded by the class. These measurements were to determine error in measurements and the derived quantities‚ volume and density. The diameter was determined using a dial caliper and the mass‚ a triple beam balance. The results of the error for diameter were not as expected while the results of the volume and density were deviated greatly from expectations; only the weight had a small error. Experimental Instruments:
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