Average Kinetic Energy of a Gas and Root Mean Square Velocity Practice Problems - Chemistry Gas Laws

This chemistry video tutorial explains how to calculate the average kinetic energy of a gas and the root mean square velocity as well. It contains plenty of examples and practice problems on this topic. This video contains all of the equations and formulas needed to solve the problems presented in this tutorial. The average kinetic energy of a collection of gas particles is directly proportional to the kelvin temperature. The root mean square velocity increases with increasing temperature but decreases as the molar mass of a gas increases.

Gas Laws Formula Sheet:

Pressure & Boiling Point:

Gas Pressure Unit Conversion:

Manometers & Barometers:

Water Height & Mercury Column:

Boyle's Law Practice Problems:

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How Does a Bike Pump Work?

Charles Law:

Gay Lussac's Law:

Avogadro's Law:

Ideal Gas Law Problems:

Combined Gas Law Problems:

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Gas Stoichiometry Problems:

Molar Mass of a Gas at STP:

Gas Density at STP:

Dalton's Law of Partial Pressure:

Collecting Gas Over Water:

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Gas Density of Mixtures:

Average Kinetic Energy of a Gas:

Graham's Law of Effusion:

Kinetic Molecular Theory of Gases:

Gas Law Problems Review:

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Full-Length Videos and Worksheets:

[choppinupyoblock]

Thank you for all of your content. You're a fantastic tutor.

[sheeba]

I'm in gen chem at college right now and your videos are absolutely saving me, man! Thanks for the taking time to make such high quality and well done videos. Your explanations are so clear and unambiguous, never thought I could learn this shit in 12 minutes!

[georgesadler]

Professor Organic Chemistry Tutor, thank you for an outstanding video/lecture on the Average Kinetic Energy of Gas and Root Mean Square Velocity Problems in AP/General Chemistry. The Temperature of gas particles is important when calculating/analyzing the Average Kinetic Energy of Gas and Root Mean Square Velocity problems in Chemistry. This is an error free video/lecture on YouTube TV with the Organic Chemistry Tutor.

[archerdev]

Thank you so much JG, you really deserve a medal.
A stupid question I've got about question 2.
I first calculated avg KE, then plugged the value to the physics KE formula (KE = 1/2 m (v.v)), and I got the same result. Just wonder if it's right?

[swapnilshinde]

First time saw your video...how beautifully explained😍...helped me a lot...thanks😄

[theashow]

i am very confused in average kinetic energy and total kinetic energy some use degree of freedom in avg while some say its in total

[jonathansmith]

why is it that you utilize the gas constant for avg KE, but other sources and solutions use boltzmanns constant. How do you know when to use either or?

[revan]

holy shit. 2 hours of lecture become 12 minutes . ty man

[howchen]

Shouldn't it be the boltzman constant?

[virendersharma]

Sir please, make a short video on the derivation of average k.e per molecule.

[punishmentbegins]

The videos are such a great help. Thank you.

[cc-tojn]

Anyone know why some use R= 8.314 and some use boltzman constant. I'm not sure which one to use.

[edwardkenny]

Wow man ur voice is handsome and keep uploading such videos i have subscribed your channel

[Dr.Infinty]

i wish i could be a member for the longer vids but i brok

[manikandanmohanan]

Thank you for this Video.... Thumbs Up

[sufiyaather]

Thank you so much, you explained it so perfectly. Gonna subscribe

[julioreyes]

Damn good explanation and nice flow with the explanation. Thanks for the help!

[thabisombingo]

Isn't helium a diatomic gas? Shouldn't the mass be 0.008kg/mol instead???

[emilygarcia-anson]

thank you, I am passing chemistry because of you.

[kellyjin]

is root mean square velocity the same thing as average molecular speed?