[Q&A Question 246] 2018.09.09
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【Q&A Question 246】September 9, 2018: Briefly explain the relationship between the pressure and volume of a fixed amount of gas at a constant temperature For a certain amount of gas at a constant temperature, P1V1 = P2V2; that is, as pressure increases, volume decreases, and if volume increases, pressure decreases. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) Correct: 3 wealth, Incorrect: 1 wealth ； Mass posting of posts – rated based on the lowest score ； Replies that are unrelated to the answer are considered spam and will be deleted immediately. For management purposes, if you need to view content from a few days ago, please go to https://bbs.hcbbs.com/home.php?mod=space&uid=3862647&do=thread&view=me&from=space through the summary post below
According to the formula PV=nRT, when the temperature remains constant, the product of volume and pressure is fixed; therefore, at a constant temperature, volume and pressure are inversely proportional to each other.
The volume (V) of a certain amount of gas at constant temperature is inversely proportional to its pressure (P).
For a certain amount of ideal gas at a constant temperature, the volume is inversely proportional to pressure (absolute pressure), with P1V1=P2V2；
Derive it through PV=nRT