Ở áp suất 101325 N/m2(1 atm),2mol nước hóa hơi ởđiểm sôi sẽhấp thụmột lượng nhiệt 81,16kJ. Sựthay đổi thểtích khi nước chuyển từpha lỏng sang pha hơi sẽsinh công.
a) Ở 373K thểtích của 1 mol nước lỏng là 0,191L và giảsửhơi nước là khí lí tưởng. Hãy tính công sinh ra.
b) Tính biến thiên nội năng và nhiệtcủa quá trình chuyển hóa này.
Answers: 1
Chemistry, 21.06.2019 14:20
Calculate the enthalpy of the following reaction: 4 b (s) + 3 o2 (g) → 2 b2o3 (s) given the following pertinent information: (a) b2o3 (s) + 3 h2o (g) → 3 o2 (g) + b2h6 (g), δhoa = +2035 kj (b) 2 b (s) + 3 h2 (g) → b2h6 (g), δhob = +36 kj (c) h2 (g) + latex: \frac{1}{2} 1 2 o2 (g) → h2o (l), δhoc = −285 kj (d) h2o (l) → h2o (g), δhod = +44 kj
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Answers: 1
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Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space
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Chemistry, 22.06.2019 10:40
Ammonia and oxygen react to form nitrogen monoxide and water, like this: 4nh3 (g) + 5o2 (g) → 4no (g) + 6h2o (g) also, a chemist finds that at a certain temperature the equilibrium mixture of ammonia, oxygen, nitrogen monoxide, and water has the following composition: compound pressure at equilibrium nh3 65.1atm o2 31.3atm no 62.7atm h2o 65.8atm compound pressure at equilibrium nh3 65.3 atm o2 7.79 atm no 12.1 atm h2o 65.8 atm calculate the value of the equilibrium constant kp for this reaction. round your answer to 2 significant
Answers: 2
Ở áp suất 101325 N/m2(1 atm),2mol nước hóa hơi ởđiểm sôi sẽhấp thụmột lượng nhiệt 81,16kJ. Sựthay đổ...
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