FATHER AGNEL SCHOOL CLASS IX SUB : CHEMISTRY Matter In Our Sorroundings 1. Define matter. 2. What are the characteristics of matter? 3. What do you mean by the following terms: a. Evaporation b. Sublimation c. Condensation d. Latent Heat of Fusion e. Latent Heat of vaporisation. f. . Melting point g. Boiling point 4. Why do gases diffuse rapidly? 5. Write the relationship between
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Examine Figure 9.4 in your textbook. What do you think is the cause of the “dip” (i.e.‚ decrease) in salinity around the equator? Could it not be argued that higher temperature causes more evaporation from the ocean surface‚ which‚ in turn‚ results in higher salinity content? Figure 9.4 shows how the surface temperature of the ocean and the surface salinity change with latitudinal position. Salinity the measure of the concentration of dissolved salts in the ocean water. Salinity influences where
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rated evaporation of industrial steam boilers (t / h)‚ rated steam pressure (MPa)‚ rated steam temperature (℃)‚ water temperature (℃)‚ applicable to analyze industrial steam boilers: Rated evaporation: Rated evaporation refers to industrial steam boiler’s steam production per unit of time‚ generally in tonnes or kilograms as a unit. In the purchase of industrial steam boilers‚ The most important thing is to understand the power of a steam boiler‚ which is the nominal amount of evaporation.
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Science‚ Medicine & Technology – Lecture 2 14th September‚ 2012 Global Warming – Paul Waithe * Differences between climate change & global warming: Global warming is the overall increase in the earth’s temperature. Climate change may be in either direction. For instance; more hurricanes‚ more wind etc. Comprehensive way at looking at weather patterns. * Climate change over the past century is directly linked to global warming. * Global warming could result in the world
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HEAT AND EVAPORATION PROBLEM: Does more heat make water evaporate faster. To test this I observed how the heat affected the evporation rate when water is placed under DIFFERENT WATTS LIGHT BULBS.i decided to do this expierment because I noticed how the water in my pond evaporates because of the sun every week we have to put water in the pond with our water hose. HYPOTHESIS: MY HOPTHESIS WAS THAT THE 75 WATT BULB would evaporate the water faster.all substances have molecules those molecules
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The differences in the characteristics of states of matter are given in the following table. S. No. | Solid state | Liquid state | Gaseous state | 1. | Definite shape and volume. | No definite shape. Liquids attain the shape of the vessel in which they are kept. | Gases have neither a definite shape nor a definite volume. | 2. | Incompressible | Compressible to a small extent. | Highly compressible | 3. | There is little space between the particles of a solid. | These particles have a greater
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the freezer evaporation temperature‚ and therefore the system overall efficient is also quite LOW. The FFC air and the FZC air circulate separately preventing the transfer of food odors‚ but the TEMPERATURE CONTROL of the compartments is rather COMPLEX. SINGLE-LOOP DUAL-EVAPORATOR IN-PARALLEL SYSTEM ( GE / Viking / LG ( patent) / ) ONE COMPRESSOR + TWO PARALLEL EVAPORATORS + CYCLING VALVE + ONE CONDENSER The FFC evaporation temperature is higher than the FZC evaporation temperature
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the random collisions between gas molecules & surfaces • Rapid evaporation: temp drops & water is evaporation • Solids have the least random molecular motion • Under the same conditions of pressure and temp a liquid differs from a gas because the molecules of the liquid take shape of the container they are in. • The phase change in which a solid becomes a liquid is known as the melting. Liquid to gas is evaporation. Gas to liquid is condensation. Liquid to solid is freezing. Solid
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of approximately 70 percent water. Vast quantities of water also cycle through the Earth ’s atmosphere‚ oceans‚ land‚ and biosphere over both short and long time scales. This grand cycling of water is called the hydrologic cycle. Precipitation‚ evaporation‚ freezing and melting and condensation are all part of the hydrological cycle - a never-ending global process of water circulation from clouds to land‚ to the ocean‚ and back to the clouds. This cycling of water is intimately linked with energy
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country are lower than in most sections. Technical reports gave the following analysis of Gulf waters: “Although the material held in solution by the water of the Gulf of Mexico is not found in combination as salts‚ such as produced on evaporation‚ but rather in the form of ions‚ the basic elements and the acid radicals being separated‚ nevertheless it is customary and convenient to consider them as combined into the form of salts. Among these‚ common salt‚ or sodium chloride‚ makes up the
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