Question regarding the formula for calculating the constant-pressure specific heat capacity of inorganic gases
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Hello everyone: I have a question. The formula for calculating the constant-pressure specific heat capacity of inorganic gases given in the handbook on chemical properties seems to be incorrect; the values obtained using this formula are negative and quite small. May I ask where the problem lies?
Changing C to -5 is also incorrect; the heat capacity increases as the temperature rises, whereas changing it to -5 results in a decrease in heat capacity as the temperature rises.
That’s it; there’s an issue with the parameters abc you’re using
The specific heat at constant pressure should be smaller as the temperature increases, right?
What a careless guy. . . If you can’t even read formulas correctly, what can you possibly claim to be? ? You didn’t make any mistakes in the coefficient values A/B/C/D in the formula, but you got the exponent for the temperature term associated with coefficient C wrong. The correct exponent is -2, yet you used 2; you omitted the negative sign. It should have been division by T^2, but you ended up doing multiplication by T^2. How much of a difference is that? ? Back and forth, it results in T to the power of 4. Taking T=273 as an example, your calculation is off by 5,554,571,841, which is a full fifty-five billion times! Could you be more careful? ?
Hello! It’s like this: the values for A, B, C, and D in the formula come from the handbook on physical properties of chemicals and materials purchased from Dangdang, specifically from the inorganic section, chapter 2.8 on specific heats of inorganic gases. Therefore, I would like to ask if there is an error in the book.
Thank you, I’ll give it a try; the book I bought includes T2
The book you mentioned, downloaded from that platform – look at the screenshot, the area marked in red? ? It’s clearly -2; could it be that there was a printing error in the paper book you bought? ? Even in the case of printing errors, print editions usually come with a corrections table. For books containing physical property data, it’s essential to check this corrections table; please find your copy and compare it carefully. The electronic version available here is not in high resolution (but it’s clear that it was printed in the first edition from 2002), yet the content can still be seen clearly. If there is a second edition of this book, such basic errors shouldn’t occur – if the first edition was error-free, how could the corrections in the second edition be wrong?
Thank you so much! The e-book I bought from Dangdang had errors in it. I’m in trouble