Ideal Gas Law: Total Pressure of Two Flasks

To find more practice problems on gases, other topics, and general chemistry study guides, visit

[blakeamartin]

Great video. Been looking for this explanation for an hour now. Now I need to look up temperature and boiling points. Lol

[iit-jeephysics]

More easier way is to equate moles. Like final moles is equal to moles of hydrogen in 2nd + moles of nitrogen in 1st container. Temperature is constant for both. Use n=pv/RT in one go you will find total pressure

[rutaremwa]

what if they both had different initial temperature?

[tuspaodds]

What if the volume doesn't change

[lalisaprettypretty]

Hello sir, how to calculate the number of moles of gas has flowed from one flask to the other?

[julioherrera]

In real scenario the "empty" flask should have air in it, correct?

[johnspence]

You should also note that SINCE total pressure = pressure (Nitrogen ) + pressure hydrogen, you can REWRITE total pressure = (P1*v1/V total + P2/V2/Votal ) = (P1*V1 +P2*V2)/V total . So TOTAL pressure = (1.8 *3 + 3.5 *2)/5 = 2.48 atm