Recent content by nakamura25

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    Thermodynamics problem: Adiabatic free expansion

    Homework Statement A rigid ( ie. Constant volume), non-conducting ( ie. Perfectly insulated, no heat losses or gain) tank with a volume of 4.6 m^3. The tank is divided into two unequal parts by a thin membrane. One side of the membrane representing 1/3 of the tank is filled with nitrogen ( may...
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    CO2 solubility in H2O at different temperature and pressure

    Hi all, I'm working on a project of carbon dioxide photocatalytic reduction. I need to dissolved as much CO2 as possible in water. Right now, the idea is to build a pressurized vessile (not overly high, probability no more than 3 atm) operates at room temperature. A diagram of CO2 solubility...
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    How to memorize three-phase reaction terms.

    This really helps! Thank you so much, JK!
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    How to memorize three-phase reaction terms.

    So I'm always having troubles with memorizing the three-phase reaction terms, such as eutectic, eutectoid, peritectic and peritectoid. Are there any meanings of the prefix and suffix? Are there any tricks to memorizing the names and meanings (reactions) of these terms? Thanks a lot!
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    How to deal with very active component?

    Hi there! I used a horizontal furnace under hydrogen (reductive gas) and nitrogen (protective gas) to reduce some kind of lanthanum nickel oxide. After reduction and air-cooling, I took the sample out of the furnace. The sample started to flame and been oxidized. There was no time to move the...
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    How to calculate lattice parameters?

    Do you have a website defining those parameters? Thanks!
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    How to calculate lattice parameters?

    Thanks! Now I understand how it is done. Happy New Year!
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    How to calculate lattice parameters?

    Thank you for answering! Experimental Data? Do you mean someone did experimental works and made them into databases (like jcpds cards)? And the article writers just quoted those data and made a table of it.
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    How to calculate lattice parameters?

    Dear Friends, I read some articles about alloys. Most articles have a table listing lattice parameters (a,b,c-axis) and unit cell volumes. But they never explain how those data come from. How do we get those data? By comparing XRD images with PDF databases? Or by calculation? Example...
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