Page 1 of 4 Expansion Devices I. Introduction Expansion devices are basic components of a refrigeration system which carry out two major purposes: (1) the pressure reduction from the condenser to evaporator pressure and (2) the regulation of refrigerant flow into the evaporator. These expansion devices can be generally classified into two types which are namely the fixed opening type (flow area is fixed) and the variable opening type (flow area changes correspondingly with a change in mass
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energy from the high temperature region to the low temperature end. THERMAL EXPANSION (See chp. 16 in Physics Text). Three states of matter are solids liquids and gasses. http://www.chem.purdue.edu/gchelp/liquids/character.html Draw diagrams to show how the molecules are arranged in all three states below. Experiments to illustrate expansion of solids‚ liquids and gasses. (page 103) 1. Expansion of Solids (fig. 16.7) • Bimetallic strip – consists of two different metals
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experienced a marked change in national unity. Territorial expansion had a large effect on national unity in this period. Territorial Expansion was among the great subject of debates during the period 1800-1855. These debates discuss arguments in favor or non-favor of U.S. Expansion. The arguments express concerns‚ fears and advantages the nation will experience by the consequences of expansion. Documents A‚ C‚ D‚ H and I are against territorial expansion. Between 1800 and 1823 the Louisiana Purchase and
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Summarize the motives‚ expectations‚ problems‚ and rewards associated with the age of European expansion. Describe the impact of Europeans on Native American (Indian) cultures and the impact of native cultures on Europeans. Then explain why it was or was not a good thing that European culture prevailed. Which one of the following do you think made the most important contribution to European expansion: Renaissance thought‚ the search for new trade routes‚ or new developments in technology? Explain
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determine the linear expansion of the rod. II. Apparatus: Linear expansion apparatus‚ Brass & Aluminium rods‚ Thermometer‚ Electric heater‚ Steel tape‚ Boiler‚ Rubber hose‚ Extension cord‚ Screw driver. III. Sketch: IV. Data and Results Item Used | Symbol | Unit | Sample Used | | | | Brass | Aluminium | Initial length of Rod | LO | cm | 61cm | 60.8cm | Initial temperature of the Rod | TL | °C | 30°C | 30°C | Final temperature of Rod | TF | °C | 99°C | 99°C | Expansion of the Rod | ∆L
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THEOREM OBJECTIVES Recognize patterns in binomial expansions. Evaluate a binomial coefficient. Expand a binomial raised to a power. Find a particular term in a binomial expansion Understand the principle of mathematical induction. Prove statements using mathematical induction. Definition: BINOMIAL THEOREM Patterns in Binomial Expansions A number of patterns‚ as follows‚ begin to appear when we write the binomial expansion of a b n‚ where n is a positive integer. a
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Economic Expansion 1. Briefly describe Hong Kong’s economy (background‚ GDP‚ growth rate‚ etc.)‚ (20 points) Everything about Hong Kong tells the story of trade. With beginnings as a small rocky island full of fishing villages‚ Hong Kong has grown to become one of the largest cities of trade and finance in the world. Hong Kong had a GDP of $325.8 billion USD in 2010‚ which represents a 6.8% growth from the previous year (“Economy: Hong Kong”‚ 2011). This growth is a nice change from the 2.7% loss
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Territorial Expansion Between 1800 and 1850‚ the United States was a nation extending in all possible ways. America experienced a amount change in national unity. Territorial expansion destroyed national unity. Between 1819 and 1824 is when the unified nation of America began to divide and depart from one another. Triggered by the concept of Manifest Destiny‚ people believed that America should extend from “sea to shining sea”. It was the issues of the expansion of slavery into the new territories
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westward expansion was the key to the nation’s health: He believed that a republic depended on an independent‚ virtuous citizenry for its survival‚ and that independence and virtue went hand in hand with land ownership‚ especially the ownership of small farms. (“Those who labor in the earth‚” he wrote‚ “are the chosen people of God.”) In order to provide enough land to sustain this ideal population of virtuous yeomen‚ the United States would have to continue to expand.The westward expansion of the
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Westward expansion was an important part of not only American history but the history of Native Americans as well. In a sense this journey seemed like a good idea and even an opportunity to further colonize the land but there was one problem‚ a group had already claimed the land as their home. This minor set back did not discourage Americans from working towards manifest destiny. The ways of the Native Americans were very different from those of the new settlers which caused much conflict and misconceptions
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