Chemistry, 14.09.2019 00:30 skybrinson04
Estimate the steady-state flux of atomic hydrogen at 25 °c through a steel vessel of wall thickness 4 mm given that its inside surface is kept saturated with hydrogen at a concentration of 4.2 moles m; the outside surface is exposed to the atmosphere. the diffusivity of hydrogen 2 -1 in α-iron 1s if the vessel contains 20 moles of hydrogen, estimate the hours taken to dissipate all of the hydrogen given that the vessel has a surface area of 2m comment on why it is possible to store hydrogen gas in iron cylinders for much longer periods how does dissolved hydrogen affect the mechanical properties of a-iron?
Answers: 2
Chemistry, 21.06.2019 23:10
Nitrogen (n), phosphorus (p), and potassium (k) are the main nutrients in plant fertilizers. according to an industry convention, the numbers on the label refer to the mass percents of n, p2o5, and k2o, in that order. calculate the n: p: k ratio of a 30: 10: 10 fertilizer in terms of moles of each element, and express it as x: y: 1.0.
Answers: 1
Chemistry, 22.06.2019 08:00
An observation that requires measurement is called quantitative observable or qualitative
Answers: 1
Chemistry, 22.06.2019 12:30
Suppose you wanted to make 100 grams of water. what is the molar mass of water (h2o)?
Answers: 2
Estimate the steady-state flux of atomic hydrogen at 25 °c through a steel vessel of wall thickness...
English, 30.09.2019 16:30
Mathematics, 30.09.2019 16:30
Mathematics, 30.09.2019 16:30
Mathematics, 30.09.2019 16:30
Mathematics, 30.09.2019 16:30
Mathematics, 30.09.2019 16:30
Mathematics, 30.09.2019 16:30
History, 30.09.2019 16:30
History, 30.09.2019 16:30
Social Studies, 30.09.2019 16:30
History, 30.09.2019 16:30