Recent content by physicisttobe

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    Calculate the molar Entropy of H2O

    @DrClaude which equation should I use for this? Should I use the boltzmann equation S = kB lnW ?
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    Calculate the molar Entropy of H2O

    Unfortunately not, our prof. didn't recommend any textbook. I was searching for a good textbook but I couldn't find helpful books, more specifically I couldn't find a textbook which includes exactly the topics we are discussing. Therefore, I had difficulties solving problems. Furthermore, we...
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    Calculate the molar Entropy of H2O

    But which equation do you mean? In statistical physics course we didn‘t calculate the molar entropy which is why I have struggles finding the right equation. But in general you calculate molar quantities with this Sm = ∆S/n
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    Calculate the molar Entropy of H2O

    I also know this equation: S = -nR (xA lnxA + xB lnxB) The allegations above do not apply to those equations.
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    Calculate the molar Entropy of H2O

    I mean I have to calculate the difference right? I only know this formula: ∆𝑆 = +𝑁𝑘 ln(1/2 ) = −𝑁𝑘 ln(2) I struggled the whole day with this task, I hope I can solve it with your help
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    Calculate the molar Entropy of H2O

    Hi everyone! It's about the following task: Calculate the molar entropy of H2O(g) at 25°C and 1 bar. θrot = 40.1, 20.9K, 13.4K θvib=5360K, 5160K, 2290K g0,el = 1 Note for translational part: ln(x!) = x lnx - x Can you explain me how to calculate this problem?
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    A system of independent particles (energy levels)

    Hi guys, Can you give me some feedback on whether my calculation is correct? I applied the formula below (Boltzmann Distribution) but I didn‘t know what to use for the variable z. I don‘t even know if I used the correct equation. Can you help me further? The task is: Consider a system of...
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    What Variables Must X̅ Have in Order to be Considered a Partial Molar Quantity?

    I think dU= TdS - PdV + sum of ... dni ? But what does that equation have to do with the question above? Should we not explain what types of variables X̅ must have? Please apologize, I'm a lil bit confused.
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    What Variables Must X̅ Have in Order to be Considered a Partial Molar Quantity?

    The question is: If X is an extensive state quantity and X̅ is the associated partial quantity, what types of variables must X̅ have? I think we should explain the properties of partial molar quantities. Which characteristics do they have? We shoul count the different variables of these partial...
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    What Variables Must X̅ Have in Order to be Considered a Partial Molar Quantity?

    And I noticed that I forgot to post all the relevant equations for that task. The complete task looks like this (see below). The question d) is false because V and S are not constant, they are not intensive, V and S are extensive properties. Therefore, they can not be considered as constant. Is...
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    What Variables Must X̅ Have in Order to be Considered a Partial Molar Quantity?

    @Chestermiller, thank you so much for your reply. So the answer to that question "If X is an extensive state variable and X̅ is the associated partial variable, what types of variables must X̅ have" is: the variables are T,p, and the mole fraction ni because they are all intensive?
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    What Variables Must X̅ Have in Order to be Considered a Partial Molar Quantity?

    Hi everyone! It's about the following task. Partial molar quantities a) How are partial molar quantities defined in general? b) If X is an extensive state variable and X̅ is the associated partial variable, what types of variables must X̅ have? c) Is the chemical potential of component i in a...
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    Biology Why do fatty acids burn in the presence of carbon?

    Hi everyone! Do you know why fatty acids burn in the presence of carbon? I found some explanations on the internet but they didn't help me. Can you explain me (in simple terms) why fatty acids burn in the presence of carbon ?
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    Biology Which organs/parts of the body are only functional on glucose?

    All right, as an answer I'll then write red blood cells. Thank you so much!!
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    Biology Which organs/parts of the body are only functional on glucose?

    Hi everyone! Do you have an idea which organs/parts of the body are ONLY functional on glucose? I would say the brain, pancreas, liver and kidney, but I have to take into account only those organs that are ONLY functional on glucose
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