Laboratory report: Processes of an ideal gas Experiment 1 1. Plot a graph showing you experimental results from the instance where you pressurised the vessel to 30kPa. The graph should show: Time on the x-axis. Pressure (P1) and temperature (T1) on the y-axis Label all axes and provide a legend to identify each of the data series Provide the figure with a title in the lower box. Figure 1: The variation of pressure‚ P and Temperature‚ T with time‚ t. 2. The
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Chemistry June Exam Notes Quantities in Chemical Reactions Molecular and formula mass o The mass of one unit of a compound (a molecule or a formula unit) o The sum of the mass of all the atoms in a compound o With knowledge of the mass of each individual atom‚ the percentage composition by mass can be determined The Mole (mol) o A counting unit‚ one mole refers to 6.02 x 1023 particles of any given substance o Known as Avogadro’s Constant and given the symbol NA Molar Mass o The
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produced‚ applying Dalton’s Law and the Ideal Gas Equation along with the application of the stoichiometric ratio between the electron and the gases‚ the fundamental electronic charge will be determined. THEORY H+ ions will join together at the cathode (the negative electrode) to produce H Atoms‚ and the H atoms will join to form molecules of H2 gas. At the positive electrode (the anode)‚ H20 molecules will decompose to replace the H+ ions lost and release O2 gas. The reactions appear below
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important laws help in the understanding of the behaviors of gases. According to Charles’s Law‚ the temperature of a gas increases; the volume also increases as long as the pressure and moles are kept constant. To allow for an increase in volume of the gas‚ as well as temperature‚ molecules spread out moving faster. Boyle’s law states that when the volume of a gas decreases‚ the pressure increases as long as the temperature and the number of moles is kept constant. As the temperature of a gas increases
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Object The object of this experiment is to find the relation between pressure and volume for the expansion of air in a pressure vessel – this expansion is a thermodynamic process. Introduction The expansion or compression of a gas can be described by the polytropic relation ‚ where p is pressure‚ v is specific volume‚ c is a constant and the exponent n depends on the thermodynamic process. In our experiment compressed air in a steel pressure vessel is discharged to the atmosphere
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measure the hydrogen gas given off in the reaction of the zinc on the nail and the hydrochloric acid. A Erlenmeyer flask was used to hold the acid and nail which released the hydrogen into a rubber tubing that was fed into a 100 mL graduated cylinder full of water. As the hydrogen entered the upside down cylinder‚ it displaced the water‚ and the volume of gas was measured (gasometric analysis). The ideal gas law was then used‚ PV = nRT. Since the volume‚ temperature‚ gas constant (R)‚ and pressure
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moles-stoichiometry-practice-problems Now you’re ready to use what you know about conversion factors to solve some stoichiometric problems in chemistry. Almost all stoichiometric problems can be solved in just four simple steps: 1.Balance the equation. 2.Convert units of a given substance to moles. 3.Using the mole ratio‚ calculate the moles of substance yielded by the reaction. 4.Convert moles of wanted substance to desired units. These "simple" steps probably look complicated at first
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Nicole Harty‚ Caitlin Kubota Section 015 2 Performed February 2‚ 2010 Due February 13‚ 2010 3 Theory: 2.1 Air As A Spring Williams Gas is a springy material‚ and when placed in a cylinder with pistons on each side it can be compressed as pistons push in‚ raising the pressure inside. There will be a net force from the pressure to push the piston back out. Since gas has mass it can support oscillations and waves. 2.2 Traveling Sound Waves in Air When a cone of a speaker moves out‚ it compresses air
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5.2 Know Boyle’s Law and its assumptions. Boyle’s Law is a principle which says for relatively low pressures‚ the pressure of an ideal gas kept at constant temperature varies inversely with the volume of the gas. It describes the inversely proportional relationship between the absolute pressure and volume of a gas‚ if temperature if kept at a constant. Know Charles’s Law and its assumptions. Charles’s Law (also known as the law of volumes) is an experimental gas law which describes how
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thermodynamics substancessuch as gases and vapours are often referred as P-V-T substances.An ideal gas obeys the equation of state that relates the pressure‚ specific volume or density‚ and absolute temperature with mass of molecule and the gas constant‚ R.However‚ real gas does not absolutely obey the equation of state. A few modifications onthe ideal gas equation of state allow its application in the properties of real gas. Whenenergy is added within water‚ the increasing of activities among the molecules
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