how much energy is needed to make glass?
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It is shown that the average energy requirement is 21.9 f 4.2 MJ per kg of saleable glass produced.
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Glass is a solid-like and transparent material that is used in numerous applications in our daily lives. Glass is made from natural and abundant raw materials (sand, soda ash and limestone) that are melted at very high temperature to form a new material: glass.
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Scraping Ice off Car Windows: 56 calories per 15 minutes. Chopping and Stacking Wood – 200 calories per 30 minutes.
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E-glass ("E" because of initial electrical application), is alkali free, and was the first glass formulation used for continuous filament formation. ... S-glass ("S" for "Strength") is used when high tensile strength (modulus) is important, and is thus important in composites for building and aircraft construction.
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Since windows are roughly 80% glass, it's important to choose an energy-efficient ENERGY STAR qualified window. ... Alside Windows Meet Stringent ENERGY STAR Performance Requirements in all U.S. Climate Zones.
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How many Joules of energy do you need to melt all the ice into a pure liquid along the path from B to C on the graph? Answer: For 1 kilogram of ice ,which equals 1000 grams, we need 333 Joules/gram x 1000 grams = 333,000 Joules.
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The g value of the glass simply tells us how well the glass transmits heat from the sun. It is expressed either as a percentage, or simple decimal. A g value of 1.0 (100%) would tell us that all solar heat could enter the building (so without any glass), and of 0 (0%) would be for an opaque material.
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Generally, glass is a very poor conductor of electricity, at least when it is cold. "Light bulbs, x-ray tubes, and many other electrical products are made from glass. One reason glass is chosen for these products is because of its excellent electrical insulating ability.
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Windows are made of glass because glass is relatively inexpensive, very hard and durable and most importantly, it is transparent to the region of the electromagnetic spectrum visible to humans.
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how much energy is required to vaporize 1.5 kg of copper? 7095 kJ APEX :) !!
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This says that to make 1 kilogram of ice, it would require 4.55 x 105 Joules of energy.
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The glass door refrigerators also offers excellent efficiency. The glass doors are often made up of double glazed which makes the appliance very energy efficient. ... This helps the fridge in maintaining the temperature of the refrigerator. The opening of the door can really increase the electricity consumption.
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Using an estimate of 40 million metric tons for U.S. plastics production in 2008 [4,5], the non-feedstock energy used to make plastic has a low estimate of (4.0 x 1010 kg)(3.6 x 107 J/kg) = 1.4 x 1018 J and a high estimate of (4.0 x 1010 kg)(5.4 x 107 J/kg) = 2.2 x 1018 J.
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The highest quality glass has the chemical formula SiO2. But this is misleading. That formula conjures up ideas of little silicon dioxide molecules, analogous to carbon dioxide molecules.
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Most countertop blenders have somewhere around 500 watts, which is perfectly sufficient for a typical blender workload. It's not necessary to pay more for a high number of watts. You may just end up with a louder machine.
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- The change from solid to liquid is called fusion, or melting. - To melt 1 gram of ice requires 80 calories. (A calorie is defined as the amount of energy needed to raise one gram of water 1°C.) - The change from liquid to ice is called solidification.
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It takes about 4200 J per liter/degree. Then you need to crystallize the water. It takes 333 KJ to cristallize 1 kg or 1 l of water (the density of water is 1). So in total you need to extract 417 KJ of energy.