equilibrium also=.=

Taurus

2010-10-04 6:44 am

a reaction is of the type A(g)+B(g)--->C(g). An ummeasured quantity of C is introduced into a 1.0 dm^3 container and is allowed to come to equilibrium.At this time a sample is analyzed and found to be 1.0 mole dm^-3 in C .If under the conditions of the experiment the equilibrium const. Kc is 1.0X 10 ^6 mole-1 dm^3,wt is the equilibrium concentration of B?

回答 (1)

[匿名]

2010-10-04 8:03 am

✔ 最佳答案

A reaction is of the type A(g) + B(g) ⇌ C(g). An ummeasured quantity of C is introduced into a 1.0 dm³ container and is allowed to come to equilibrium. At this time a sample is analyzed and found to be 1.0 mole dm¯³ in C. If under the conditions of the experiment the equilibrium const. Kc is 1.0 x 10⁶ mol¯¹ dm³, what is the equilibrium concentration of B?

A(g) + B(g) ⇌ C(g)
Let y mol dm¯³ be the equilibrium concentration of B.

At equilibrium:
[C] = 1 mol dm¯³
[A] = [B] = y mol dm¯³

Kc = [C]/[A][B]
1/y² = 1 x 10⁶
y = 1 x 10¯³

Equilibrium concentration of B = 1 x 10¯³ mol dm¯³

參考: adam

👍 0 👎 0