. Ở áp suất 101325 N/m2
(1 atm), 2 mol nước hóa hơi ở điểm sôi sẽ hấp thụ một
lượng nhiệt 81,...
Chemistry, 28.06.2021 16:50 Learsyguerra26
. Ở áp suất 101325 N/m2
(1 atm), 2 mol nước hóa hơi ở điểm sôi sẽ hấp thụ một
lượng nhiệt 81,16 kJ. Sự thay đổi thể tích khi nước chuyển từ pha lỏng sang pha
hơi sẽ sinh công.
a) Ở 373K thể tích của 1 mol nước lỏng là 0,191L và giả sử hơi nước là khí lí
tưởng. Hãy tính công sinh ra.
b) Tính biến thiên nội năng và nhiệt của quá trình chuyển hóa này.
Answers: 1
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Problem page combustion of hydrocarbons such as pentane ( c5 h12 ) produces carbon dioxide, a "greenhouse gas." greenhouse gases in the earth's atmosphere can trap the sun's heat, raising the average temperature of the earth. for this reason there has been a great deal of international discussion about whether to regulate the production of carbon dioxide.(a) write a balanced chemical equation, including physical state symbols, for the combustion of liquid pentane into gaseous carbon dioxide and gaseous water. (b) suppose 0.350 kg of pentane are burned in air at a pressure of exactly 1 atm and a temperature of 20.0 degree c. calculate the volume of carbon dioxide gas that is produced.be sure your answer has the correct number of significant digits.
Answers: 2
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If a molecule with a molecular formula of c13h18 is treated with an excess of h2 in the presence of finally divided pt metal under conditions required for maximum hydrogenation of the molecule to give a molecule with a formula c13h24, how many rings are in the molecule?
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