Homework Help: Chemistry

Posted by L on Thursday, April 26, 2012 at 3:44pm.

The Kp for the following equilibrium system is 4.31 x 10‒4 at 375°C : N2(g) + 3H2(g) ↔ 2NH3(g).
If 0.862 atm of N2 and 0.373 atm of H2 were mixed in a constant-volume flask and heated to 375°C, which of the following would be closest to the equilibrium partial pressure of NH3 ?

(1) 0.860 atm (2) 4.40 x 10‒3 atm (3) 2.75 x 10‒4 atm (4) 0.366 atm (5) 1.09 x 10‒2 atm

Chemistry - DrBob222, Thursday, April 26, 2012 at 5:16pm
..............N2 + 3H2 ==> 2NH3
initial....0.862..0.373......0
change.....-p......-3p......+2p
equil...0.862-p..0.373-3p....2p

I looked on the web to find an equation solver for quartics; I'm sure they are there but I didn't find them. I suggest you try substituting the value for NH3 (and the others) into the equation and see which is the closest. That's probably what the author of the problem expected you to do anyway.
Chemistry - L, Thursday, April 26, 2012 at 8:23pm
Thank You!

Answer this Question

Related Questions

Chemistry - One mole of N2 and three moles of H2 are placed in a flask at 375 C...
Chemistry - One mole of N2 and three moles of H2 are placed in a flask at 375 C...
Chemistry - Kp - What is the Kp for the following reaction: 2NH3(g) --> ...
Chemistry - Kp - What is the Kp for the following reaction: 2NH3(g) --> ...
Chemistry - 3H2(g)+N2(g)=2NH3(g) Suppose the equilibrium constant Kp = 0.003337 ...
chemistry - At 860.0 deg celsius, the equilibrium constant Kp for the synthesis ...
Chem - Please tell me if these are right. 1.According to Le Chatelier’s ...
PLEASE HELP Chem - Please tell me if these are right. 1.According to Le ...
Chemistry - A container initially has 0.0186 M ammonia at a certain temperature...
college chemistry - At 625 K the value of Kc for the equilibrium represented by ...

For Further Reading

First Name:
School Subject:
Answer: