lecture 5 phase equilibria
... • The upper critical solution temperature, Tuc is the highest temperature at which phase separation occurs. • Above the critical temperature the two components are fully miscible. • On the molecular level, this can be interpreted as the kinetic energy of each molecule over coming molecular interacti ...
... • The upper critical solution temperature, Tuc is the highest temperature at which phase separation occurs. • Above the critical temperature the two components are fully miscible. • On the molecular level, this can be interpreted as the kinetic energy of each molecule over coming molecular interacti ...
Chapter 2 Matter and Change
... Mixtures are a physical blend of at least two substances; have variable composition. They can be either: 1) Heterogeneous – the mixture is not uniform in composition • Chocolate chip cookie, gravel, soil. 2) Homogeneous - same composition throughout; called “solutions” • Kool-aid, air, salt water ...
... Mixtures are a physical blend of at least two substances; have variable composition. They can be either: 1) Heterogeneous – the mixture is not uniform in composition • Chocolate chip cookie, gravel, soil. 2) Homogeneous - same composition throughout; called “solutions” • Kool-aid, air, salt water ...
Contact Angle Goniometry as a Tool for Surface Tension
... Measurement of Young’s Contact Angle The technique of measuring Young’s contact angles was described previously (7) in detail, but its main facets will be presented for the benefit of novices to the method. To find Young’s contact angle for a liquid in contact with a surface, a drop of the liquid is ...
... Measurement of Young’s Contact Angle The technique of measuring Young’s contact angles was described previously (7) in detail, but its main facets will be presented for the benefit of novices to the method. To find Young’s contact angle for a liquid in contact with a surface, a drop of the liquid is ...
types of solutions
... · This movement happens in a direction that attempts to equalize the concentrations of both sides. ...
... · This movement happens in a direction that attempts to equalize the concentrations of both sides. ...
Міністерство охорони здоров`я України
... dispersion of substances in the solutions can be different. Particle size is a very important feature which causes many physical and chemical properties of the solutions. According to the particle size solutions can be classified as: 1) true solutions (particle size is less than 10-9 m), which can ...
... dispersion of substances in the solutions can be different. Particle size is a very important feature which causes many physical and chemical properties of the solutions. According to the particle size solutions can be classified as: 1) true solutions (particle size is less than 10-9 m), which can ...
General Chemistry
... • polar solvents dissolve polar solutes. • Non-polar solvents dissolve non-polar solutes. Water is polar (because it’s bent). It will therefore tend to dissolve other polar molecules or ions. For example, most salts, alcohols and sugars dissolve in water. Alcohols and sugars all contain the O-H part ...
... • polar solvents dissolve polar solutes. • Non-polar solvents dissolve non-polar solutes. Water is polar (because it’s bent). It will therefore tend to dissolve other polar molecules or ions. For example, most salts, alcohols and sugars dissolve in water. Alcohols and sugars all contain the O-H part ...
A Lattice Model of Liquid Helium» II I. Introduction
... In the preceding paper/> hereafter referred to as I, we have introduced Hamiltonian of the lattice model of liquid helium and proved its equivalence to that of a spin system with anisotropic exchange coupling. The A-transition was shown there to correspond to the spin system, and making use of the m ...
... In the preceding paper/> hereafter referred to as I, we have introduced Hamiltonian of the lattice model of liquid helium and proved its equivalence to that of a spin system with anisotropic exchange coupling. The A-transition was shown there to correspond to the spin system, and making use of the m ...
Chapter 13
... number of particles in solution. This is most easily done by using the van 't Hoff factor i as mB = msolute · i. The factor i accounts for the number of individual particles (typically ions) formed by a compound in solution. ...
... number of particles in solution. This is most easily done by using the van 't Hoff factor i as mB = msolute · i. The factor i accounts for the number of individual particles (typically ions) formed by a compound in solution. ...
GAS PRACTICE A sample of an ideal gas is cooled from 50.0 °C to
... (C) Covalent bonds between H2O molecules are broken. (D) Ionic bonds between H+ ions and OH− ions are broken. (E) Covalent bonds between H+ ions and H2O molecules become more effective. 11. Of the following pure substances, which has the highest melting point? (A) S8 (B) I2 (C) SiO2 (D) SO2 (E) C6H6 ...
... (C) Covalent bonds between H2O molecules are broken. (D) Ionic bonds between H+ ions and OH− ions are broken. (E) Covalent bonds between H+ ions and H2O molecules become more effective. 11. Of the following pure substances, which has the highest melting point? (A) S8 (B) I2 (C) SiO2 (D) SO2 (E) C6H6 ...
Chemistry - Chap 12 Homework Answers 2014
... 1. State what the Kinetic-Molecular theory says about the particles of gases in terms of their: a) size small (point masses= has mass but takes up no space) b) motion rapid; random; travel in straight line, collisions are elastic c) energy high energy 2. Compare the density and compressibility of ga ...
... 1. State what the Kinetic-Molecular theory says about the particles of gases in terms of their: a) size small (point masses= has mass but takes up no space) b) motion rapid; random; travel in straight line, collisions are elastic c) energy high energy 2. Compare the density and compressibility of ga ...
Spring 2001 - TAMU Chemistry
... Point 5 is called the triple point. At Point 3, the liquid phase is in equilibrium with gas phase. When the substance moves from the conditions at Point 1 to the conditions at Point 2, the substance boils. When the conditions change from Point 2 to Point 4, the temperature changes and the pressure s ...
... Point 5 is called the triple point. At Point 3, the liquid phase is in equilibrium with gas phase. When the substance moves from the conditions at Point 1 to the conditions at Point 2, the substance boils. When the conditions change from Point 2 to Point 4, the temperature changes and the pressure s ...
chapter6
... KINETIC MOLECULAR THEORY OF MATTER • The kinetic molecular theory of matter is a useful tool for explaining the observed properties of matter in the three different states of solid, liquid and gas. • Postulate 1: Matter is made up of tiny particles called molecules. • Postulate 2: The particles of ...
... KINETIC MOLECULAR THEORY OF MATTER • The kinetic molecular theory of matter is a useful tool for explaining the observed properties of matter in the three different states of solid, liquid and gas. • Postulate 1: Matter is made up of tiny particles called molecules. • Postulate 2: The particles of ...
On the Modeling of the Production and Drift of Carriers in
... measured values (with a peak of about 100 μA [5]). This result shows that an additional mechanism of electron transfer into the liquid (other than the ones described above) is required in the simulation in order to reach the measured currents. For this reason, it is relevant to consider that the poi ...
... measured values (with a peak of about 100 μA [5]). This result shows that an additional mechanism of electron transfer into the liquid (other than the ones described above) is required in the simulation in order to reach the measured currents. For this reason, it is relevant to consider that the poi ...
NSCC Chem 121 chapter6
... KINETIC MOLECULAR THEORY OF MATTER • The kinetic molecular theory of matter is a useful tool for explaining the observed properties of matter in the three different states of solid, liquid and gas. • Postulate 1: Matter is made up of tiny particles called molecules. • Postulate 2: The particles of ...
... KINETIC MOLECULAR THEORY OF MATTER • The kinetic molecular theory of matter is a useful tool for explaining the observed properties of matter in the three different states of solid, liquid and gas. • Postulate 1: Matter is made up of tiny particles called molecules. • Postulate 2: The particles of ...
Solution
... 3- The particles exhibit continuous random motion owing to their kinetic energy. The average kinetic energy, E, is directly proportional to the absolute temperature of the gas. 4- The molecules exhibit perfect elasticity; that is, there is no net loss of speed or transfer of energy after they collid ...
... 3- The particles exhibit continuous random motion owing to their kinetic energy. The average kinetic energy, E, is directly proportional to the absolute temperature of the gas. 4- The molecules exhibit perfect elasticity; that is, there is no net loss of speed or transfer of energy after they collid ...
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... Solids are usually more closely packed than liquids; therefore, solids are more dense than liquids. Ice is ordered with an open structure to optimize H-bonding. Therefore, ice is less dense than water. In water the H-O bond length is 1.0 Å. The O…H hydrogen bond length is 1.8 Å. Ice has waters arran ...
... Solids are usually more closely packed than liquids; therefore, solids are more dense than liquids. Ice is ordered with an open structure to optimize H-bonding. Therefore, ice is less dense than water. In water the H-O bond length is 1.0 Å. The O…H hydrogen bond length is 1.8 Å. Ice has waters arran ...
4.5 Solid fast-ion conductors 1
... However, the oxygen conductor-zironia and the sodium-conductor and β’and β”-alumina are sufficiently conductive, particularly at elevated temperature to have been adopted for a number of applications. ...
... However, the oxygen conductor-zironia and the sodium-conductor and β’and β”-alumina are sufficiently conductive, particularly at elevated temperature to have been adopted for a number of applications. ...
Thermometer Calibration Background Information The most
... senses the temperature. The glass barrel of the thermometer above the liquid bulb contains a fine capillary opening in its center, into which the liquid rises as it expands in volume when heated. The capillary tube in the barrel is very uniform in its cross-section all along the length of the thermo ...
... senses the temperature. The glass barrel of the thermometer above the liquid bulb contains a fine capillary opening in its center, into which the liquid rises as it expands in volume when heated. The capillary tube in the barrel is very uniform in its cross-section all along the length of the thermo ...
Period 4 - cloudfront.net
... 3. which is true about intramolecular forces and intermolecular forces A. intramolecular are in the same molecule while intermolecular forces are between neighboring molecules B. intermolecular forces have 3 types: ionic, covalent, metallic C. intramolecular forcers are weak D. intramolecular force ...
... 3. which is true about intramolecular forces and intermolecular forces A. intramolecular are in the same molecule while intermolecular forces are between neighboring molecules B. intermolecular forces have 3 types: ionic, covalent, metallic C. intramolecular forcers are weak D. intramolecular force ...
Surface Tension Measurements
... Determine the surface tension for each n-Butanol solution. These solutions are dilute enough that the density can be taken as that of Water at the measuring temperature. Plot vs. C; including appropriate error bars. Identify the “dilute solution” regime. Determine and for each solution in this ...
... Determine the surface tension for each n-Butanol solution. These solutions are dilute enough that the density can be taken as that of Water at the measuring temperature. Plot vs. C; including appropriate error bars. Identify the “dilute solution” regime. Determine and for each solution in this ...
The halogens
... Atomic fluorine is univalent and is the most chemically reactive and electronegative of all the elements. In its elementally isolated (pure) form, fluorine is a poisonous, pale, yellowish brown gas, with chemical formula F2. Like other halogens, molecular fluorine is highly dangerous; it causes seve ...
... Atomic fluorine is univalent and is the most chemically reactive and electronegative of all the elements. In its elementally isolated (pure) form, fluorine is a poisonous, pale, yellowish brown gas, with chemical formula F2. Like other halogens, molecular fluorine is highly dangerous; it causes seve ...
Chapter 6 - DePaul University Department of Chemistry
... and therefore possess kinetic energy. • Postulate 3: The particles possess potential energy as a result of repelling or attracting each other. • Postulate 4: The average particle speed increases as the temperature increases. • Postulate 5: The particles transfer energy from one to another during col ...
... and therefore possess kinetic energy. • Postulate 3: The particles possess potential energy as a result of repelling or attracting each other. • Postulate 4: The average particle speed increases as the temperature increases. • Postulate 5: The particles transfer energy from one to another during col ...
Le Châtelier`s Principle
... Increase in the concentration of sulfur dioxide: The equilibrium shifts right to use up the extra SO2, producing more sulfur trioxide and using up some oxygen. Decreasing the partial pressure of sulfur trioxide: This is equivalent to decreasing the concentration of sulfur trioxide. The equilibrium w ...
... Increase in the concentration of sulfur dioxide: The equilibrium shifts right to use up the extra SO2, producing more sulfur trioxide and using up some oxygen. Decreasing the partial pressure of sulfur trioxide: This is equivalent to decreasing the concentration of sulfur trioxide. The equilibrium w ...
Liquid
A liquid is a nearly incompressible fluid that conforms to the shape of its container but retains a (nearly) constant volume independent of pressure. As such, it is one of the four fundamental states of matter (the others being solid, gas, and plasma), and is the only state with a definite volume but no fixed shape. A liquid is made up of tiny vibrating particles of matter, such as atoms, held together by intermolecular bonds. Water is, by far, the most common liquid on Earth. Like a gas, a liquid is able to flow and take the shape of a container. Most liquids resist compression, although others can be compressed. Unlike a gas, a liquid does not disperse to fill every space of a container, and maintains a fairly constant density. A distinctive property of the liquid state is surface tension, leading to wetting phenomena.The density of a liquid is usually close to that of a solid, and much higher than in a gas. Therefore, liquid and solid are both termed condensed matter. On the other hand, as liquids and gases share the ability to flow, they are both called fluids. Although liquid water is abundant on Earth, this state of matter is actually the least common in the known universe, because liquids require a relatively narrow temperature/pressure range to exist. Most known matter in the universe is in gaseous form (with traces of detectable solid matter) as interstellar clouds or in plasma form within stars.