how much energy does it take to make a metal straw?
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In comparison, a single stainless steel straw is responsible for using 2420 kJ of energy, releasing 217 grams of carbon dioxide, and costs $3.00. A single glass straw is responsible for using 1105 kJ of energy, releasing 65.2 grams of carbon dioxide emissions, and costs $0.32.
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It takes a lot of thermal energy to make ethanol from corn. In general, about 35,000 Btu of heat energy is required to produce a gallon of ethanol. For comparison, the energy content of ethanol is about 75,000 Btu per gallon.
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One large straw (14 grams) contains 60 calories. Pixy Stix don't contain protein, fat, vitamins or minerals -- only sugar (carbohydrate). One small straw contains approximately 2.14 grams of sugar.
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The sun releases energy at a mass–energy conversion rate of 4.26 million metric tons per second, which produces the equivalent of 384.6 septillion watts (3.846×1026 W).
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To produce a ton of steel in an electric arc furnace requires approximately 400 kilowatt-hours per short ton or about 440 kWh per metric tonne; the theoretical minimum amount of energy required to melt a tonne of scrap steel is 300 kWh (melting point 1520 °C/2768 °F).
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Plastic straws – 200 years Plastic straws can take up to 200 years to decompose. Choose a paper straw or ditch them altogether and try the age-old sipping technique.
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Frantz writes that the straw creates a vacuum, which eliminates all oxygen. “The feeling of intoxication is created in part, because of the lack of oxygen entering us,” Frantz says, “so when we form a vacuum with a straw, we should naturally get more drunk.”
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Glass, by contrast, is made from the more easily accessible silica. As a result of bauxite mining's environmental toll, manufacturing a 12-ounce aluminum can is twice as energy-intensive as making a similarly sized glass bottle: 2.07 kilowatt hours of electricity for the can vs. 1.09 kilowatt hours for the bottle.”
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The energy released when steam condenses to water is in the range 2000 - 2250 kJ/kg (depending on the pressure) - compared to water with 80 - 120 kJ/kg (with temperature difference 20 - 30 oC).
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How much energy is required to vaporize 2 kg of copper? A 4730 kj.
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how much energy is required to vaporize 1.5 kg of copper? 7095 kJ APEX :) !!
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The production of 1 m³ of concrete requires 2,775 MJ of energy. This energy comes mostly from oil burning, which generates CO2. 2.775 MJ of energy is produced by 0.37 barrels of oil.
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A 100% efficient electrolyser requires 39 kWh of electricity to produce 1 kg of hydrogen. The devices today require as much as 48 kWh/kg. So, if electricity costs are 0.05 US$/kWh, the power cost for the electrolysis process alone is 2.40 US$/kg of hydrogen.
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One cell phone takes 240 gallons to manufacture. It takes 713 gallons to produce one cotton t-shirt. A hamburger uses 660 gallons of water to make.
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When ultraviolet light with a wavelength of 400 nm falls on a certain metal surface, the maximum kinetic energy of the emitted photoelectrons is 1.10 ev .
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Sip from our new non-plastic straws - we have replaced plastic straws completely with straws made from cane sugar fibre to help you break free from plastic.
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Electricity There's also the cost to run the distiller. My distiller uses 2.9kW of electricity to make one gallon of water. I pay $0.09 per kW, and it takes around five to six hours to distill one gallon. So it costs me around $0.29 to make a gallon.