The Ideal Gas Equation | Thermodynamics | (Solved Examples)

Learn about the ideal gas equation, how to use it and when to use it. We solve a few examples step by step to understand how to use the equation.
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Intro (00:00)
A 400 L rigid tank contains 5 kg of air (02:50)
A 2 kg mass of helium is maintained at 300 kPa (03:41)
Argon in the amount of 1.5 kg fills a (04:15)
Books used:
📘Çengel Yunus A. and M. A. Boles, Thermodynamics: an engineering approach. New York, NY: McGraw-Hill Education, 2016.
📘C. Borgnakke and R. E. Sonntag, Fundamentals of thermodynamics. Hoboken, NJ: Wiley, 2019.

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[@QuestionSolutions]

You're very welcome, and thanks for taking the time to leave a comment. I appreciate it. I hope you do amazingly in your course.

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In mechanical engineering we use the word absolute in many subjects ,what it exactly mean

[@QuestionSolutions]

it's dependent on where the term is used. For example, we use absolute pressure to define pressure that's measured relative to a vacuum. You can read more about this here: www.sciencedirect.com/topics/computer-science/absolute-scale

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[@r2k314]

Sorry to bother you again, but there is one thing that doesn't make sense to me with this equation: If you hold pressure constant and increase volume temperature increases. Please explain, because I intuitively think if pressure is held constant the temperature would rise when volume is reduced not increased! Thank You for all you do.

[@QuestionSolutions]

It's not a bother, though I am not sure how I can explain it. The equation represents real life behavior that an ideal gas follows. Also, make sure you understand the difference between specific volume and volume. When you use volume, the mass value is independent, whereas when you use specific volume, you are finding it per unit mass basis.