Homework Help: chemistry

Posted by Celeste on Wednesday, November 9, 2011 at 12:10am.

Consider the following reaction in a closed reaction flask. If 0.600 atm of gas A is allowed to react with 1.20 atm of gas B and the reaction goes to completion at constant temperature and volume, what is the total pressure in the reaction flask at the end of the reaction? What are the partial pressures of the gases in the flask?

A(g) + 3B(g) → AB3(g)

chemistry - DrBob222, Wednesday, November 9, 2011 at 12:50am
What's the limiting reagent? See discussion below.
...........A + 3B ==> AB3
initial..0.6...1.2.....0
change..-0.4..-1.2....+0.4
equil....0.2....0.....0.4

0.6 atm A will form 0.6 atm AB3 but
1.2 atm B will form 1.2 x (1/3) = 0.4 atm AB3; therefore, B is the limiting reagent.
Total pressure is 0.2 + 0.4 = ? atm and partial pressures are given in the equilibrium line.
You can work this by assuming some T and some V, solve for moles and work it with moles. Then use PV = nRT and solve for pressures of each but it takes much longer. I get the same answer either way.

Answer this Question

Related Questions

chem - A piece of lithium metal with a mass of 3.25g reacts with sufficient ...
Chemistry - Consider the following chemical reaction: C (s)+ H2O(g) --> ...
Chemistry - Consider the following reaction: H2+I2<->2HI A ...
Chemistry - balloon is filled with 1.35 atm dimethyl ether gas and 5.25 atm of ...
Chemistry - Consider the reaction: 2 H2S(g)--><-- 2H2(g) + S2 Kp...
Chemistry - Consider the reaction: 2 H2S(g)--><-- 2H2(g) + S2 Kp...
College Chemistry - Consider the following symbolic reaction in which the ...
chemistry - The following reaction is at equilibrium at a pressure of 1 atm, in ...
Chemistry - Consider the following equilibrium at 1000K: 2SO2 (g) + O2 (g) &...
chemistry - Consider the reaction 3CH4(g)= C3H8(g)+ 2H2(g).Calculate Delta G at ...

For Further Reading

First Name:
School Subject:
Answer: