How to find Compressibility Factor Z

Determine the specific volume of ammonia 3 ways: 1. Compressibility Chart, 2. Ideal Gas Law, 3. Steam Tables (Ideal Gas Tables), and discuss which is most accurate and when to use each one.
Your textbook probably has generalized compressibility data presented in multiple similar looking charts, so once you find reduced pressure reduced temperature, you’ll use the compressibility chart that is zoomed the most so that your reduced temperature reduced pressure datapoints are easiest to read.
TIMECODES
0:00 Introduce 3 Methods
1:16 Ideal Gas Equations of State
3:41 How to Use Compressibility Chart
6:28 How to use “Steam” Tables
7:32 When to use each method

[@lifeisyosucks1740]

omg this video make me understand all 3 lectures within 9 mins what an amazing video!

[@BrianBernardEngineering]

When you solve the same problem multiple ways, and get about the same answer each way - yea, it's great how that confirms that you did each method right, and you learn them all at once. You got exactly what I was going for.

[@saadmir1957]

I have been searching for "How to find compressibility factor" for 2 days and this video solve my problem in minutes! Thanks

[@BrianBernardEngineering]

I'm happy to help and glad you understand better now.

[@KC-fq4jv]

High quality video. Much respect for that!

[@BrianBernardEngineering]

thank you so much. I'm glad you liked it.

[@mustafakoseoglu7608]

Very clear presentation. Helped me a lot. Thanks for the effort!

[@BrianBernardEngineering]

You're welcome! Positive comments make the effort worth it. it's really motivating.

[@SMW_Physicist]

This was very helpful! Thank you! Good luck to my fellow engineering students!

[@BrianBernardEngineering]

you're welcome

[@jamaicamaysuficiencia6667]

Thankkk youuu! Such a great work!

[@BrianBernardEngineering]

You're welcome! I'm really glad the video helped.

[@correa12carlos]

Hey, your chart is easier to read than mine. I have one that is black color, and yours it is blue, Also more resolution. Very good explanation, I am understanding this thanks to you.

[@BrianBernardEngineering]

This chart came from the textbook authored by "Moran". It's definitely the paid textbook I recommend most for Thermodynamics (though I actually use free textbooks for my classes this year). You should be able to buy a used version for WAY cheaper than a new one. I see used copies for previous editions on Amazon for around $10 including shipping. Way better than buying new, if you don't need the homework problems from the new book. Very good colorful tables, even if you go back a few editions.

[@raymondarome9314]

Great video.

[@BrianBernardEngineering]

Thank you, I'm glad if it helped.

[@2klegend725]

amazing video

[@BrianBernardEngineering]

Thanks! I really do appreciate it.

[@gropgrop]

you are amazing sir, also love your room

[@BrianBernardEngineering]

Thank you. I don't stream on Twitch, but that's the decoration style I was going for.

[@nazmussakib2818]

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[@BrianBernardEngineering]

Hello from Texas, United States - and I'm happy I was able to help. I like hearing where students are from, it's like receiving a free post card.

[@alramadana]

i love i wish you had taught all the course

[@BrianBernardEngineering]

thank you. I've been making mainly Fluid Mechanics vids recently, but hope to add more thermo vids someday.

[@sachinsp2599]

Thank you soo much sir...

[@BrianBernardEngineering]

You're welcome, I'm glad it helped.

[@TheStriked]

thanks brian

[@BrianBernardEngineering]

you're welcome.

[@mentality1225]

Hello! Just wanna ask, how can you read the compressibility chart when the given is Vr and Tr? Thank you and hopefully my question will be answered

[@BrianBernardEngineering]

There's 4 sets of lines on the chart, and you only need to know 2 values, to see where they cross, and can find the other 2. Z is the horizontal lines. Pr is vertical lines. Tr are the solid swooping lines, and Vr the dashed lines going from bottom left to upper right. If you have Vr, that's the dashed lines that start at 3.0 upper left near Z=1, and go down as the numbers go down/right from there. Find your Vr dashed line. Then find your Tr solid swooping lines which have their numbers starting at around 3.5 top center and move down from there. Where those lines meet, look straight down to get Pr if you need it, and left to find Z.

[@suongnhik4666]

1 molar CO2 Tr = 0.8 Pr =1 Compressibility factor Z ?

[@1KINGKS]

Nice vedo

[@BrianBernardEngineering]

Thanks so much. I try to make connections between seemingly difficult and different topics - makes it easier to learn them all together instead of separately.