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Topic: *delete me*!1 Gases!!  (Read 2407 times)

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Offline fremuspoc

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*delete me*!1 Gases!!
« on: November 05, 2011, 09:19:38 PM »
2A(g) + 3B(g) → A2B3(g)
If 0.5 atm of gas A is mixed in an evacuated reaction flask with 1.0 atm of gas B, what is the final pressure in the reaction flask? (assume that the reaction goes to completion)

I know the answer is 0.5 atm, but I do not know why!! Please it is urgent!1
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Offline sjb

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Re: *delete me*!1 Gases!!
« Reply #1 on: November 06, 2011, 05:19:18 AM »
Quote from: fremuspoc on November 05, 2011, 09:19:38 PM
2A(g) + 3B(g) → A2B3(g)
If 0.5 atm of gas A is mixed in an evacuated reaction flask with 1.0 atm of gas B, what is the final pressure in the reaction flask? (assume that the reaction goes to completion)

I know the answer is 0.5 atm, but I do not know why!! Please it is urgent!1

What is the limiting reagent in this question?
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Offline ermafatiha

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Re: *delete me*!1 Gases!!
« Reply #2 on: November 06, 2011, 07:43:43 AM »
 ???
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Offline fledarmus

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Re: *delete me*!1 Gases!!
« Reply #3 on: November 08, 2011, 10:23:47 AM »
A) what do you know about the change in pressure with respect to changing the number of moles of a gas?

B) what do you know about the change in the number of moles for the reaction that is occurring in your problem?
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