surface of a liquid is observed to be elevated or depressed where it comes into contact with a solid. Ability of a liquid to flow in narrow spaces without the assistance of‚ and in opposition to‚ external forces like gravity Capillary action is sometimes called capillarity‚ capillary motion‚ or wicking Capillarity Types:- Capillarity Rise:- The upward movement of a liquid against the force of gravity inside narrow spaces and thin tubes is called capillary rise . This property of liquid is called
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solution. Air is an example of a gaseous solution. When dry is made up of oxygen gas dissolved in nitrogen gas. b. Liquid Solution- contain a liquid solvent in which gas‚ liquid‚ or solid is dissolved. Water is the most common liquid solution. Many things can be dissolved in it. Table salt is an example of a solid dissolved in a liquid. A liquid and a gas can also be dissolved in a liquid solution. c. Solid Solution- is a mixture of solids spread equally throughout one another. Metal is an example
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This is defined as a substance dispersed evenly throughout another substance. A colloid consists of two phases in its entire substantial form which are a dispersed phase of the solution and a continuous phase. A colloidal system may be solid‚ liquid or gaseous in form. Some colloids are translucent which causes particles to be scattered throughout the colloid‚ whilst other colloids may be opaque or have a slight color. PROPERTIES (Particle Visibility‚ Particle Distribution‚ Filterability
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pressure transmitted out to the surface or envelope of the liquid‚ but within the fluid itself the particlesare all pressed together. When a solid is immersed in the liquid it is pressed at every point of its surface in the direction perpendicular to the surface at that point.(3) In every horizontal layer throughout the liquid the pressure per unit area is the same; and this is the case independently of the shape of any vessel in which the liquid may be contained. The pressure per unit area in any horizontal
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and Time Matter and Model-Building Density and Atomic Mass Dimensional Analysis Conversion of Units Estimates and Order-ofMagnitude Calculations Significant Figures ANSWERS TO QUESTIONS Q1.1 Q1.2 Atomic clocks are based on electromagnetic waves which atoms emit. Also‚ pulsars are highly regular astronomical clocks. Density varies with temperature and pressure. It would be necessary to measure both mass and volume very accurately in order to use the density of water as a standard. People have
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Matter‚ Solutions‚ and Phase Changes Unit 1. What is matter? Anything that takes up space (volume) and has mass 2. Explain how to classify matter. (Homogeneous‚ Heterogeneous‚ Mixture‚ Pure Substance)? HOMOGENEOUS Matter that is made up of the same or alike particles Can’t see what makes it up Looks uniform HETEROGENEOUS Matter that is made up of different types of particles Can see what makes it up Mixture A material made up of two or more substances that can be easily separated
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Part I: 1. Calculate the energy change (q) of the surroundings (water) using the enthalpy equation qwater = m × c × ΔT. We can assume that the specific heat capacity of water is 4.18 J / (g × °C) and the density of water is 1.00 g/mL. qwater = m × c × ΔT m = mass of water = density x volume = 1 x 26 = 26 grams ΔT = T(mix) - T(water) = 38.9 - 25.3 = 13.6 q(water) = 26 x 13.6 x 4.18 q(water) = 1478 Joules SPECIFIC HEAT: qmetal = -205 J = 15.363 g X c X (27.2 - 100.3 C) c
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Detailed Lesson Plan in Science IV (Soil Erosion) I. Learning Objectives a. Identify the agents of soil erosion. b. Explain how each agents cause erosion. c. Perform related activities enhancing knowledge about soil erosion. d. Enumerate ways and means on how to help prevent soil erosion. II. Subject Matter a. Topic: Soil Erosion b. References: c. Concepts: Soil Erosion and its Effects d. Sciences Processes: Observation‚ Experimenting‚ Analysing e. Materials: 2 large
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counter-currently reacting with Na2SO3 rich feed. Introduction Absorbers are vertical towers used in distillation‚ gas absorption and liquid-liquid extraction processes. Absorbers can be operated co-currently or counter currently. In the former‚ both fluids involved are fed into the unit from the same point causing them to flow along each other. In counter current operation‚ the liquid is fed at the top of the absorber‚ flows downwards and contacts with rising gas fed from beneath. Absorbers can be classified
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product and the vapor is condensed and discarded. Agitated thin film evaporators‚ wiped film evaporators‚ are designed to spread a thin layer or film of liquid on one side of a metallic surface‚ with heat supplied to the other side. The unique feature of this equipment is not the thin film itself‚ falling and rising-film evaporators use thin liquid layers‚ but rather the mechanical agitator device for producing and agitating the film (APV‚ 2000). Conventional heat transfer equipment may not be well
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