Can someone help me with these Chemistry Problems? Write equilibrium expressions for the following reactions [...] denotes subscript?

👨🏻‍🏫 學術台化學

[匿名]

2017-04-15 2:47 pm

更新1:

a. 2N[2]H[4](g)+2NO[2](g) <-> 3N[2](g)+4H[2]O(g)

更新2:

b. 2NbCl[4](g)<-> NbCl[3](g)+NbCl[5](g)

更新3:

b. 2NbCl[4](g)<-> NbCl[3](g)+NbCl[5](g)

更新4:

it posted B twice :(

更新5:

c. I[2](g)<->2I(g)

更新6:

d. 2SO[3](g) + CO[2](g) <-> CS[2][(g) + 4O[2](g)

回答 (2)

戇戇居士

2017-04-16 12:17 am

✔ 最佳答案

a. 2N₂H₄(g) + 2NO₂(g) ⇌ 3N₂(g) + 4H₂O(g)
Kc = [N₂]³ [H₂O]⁴ / {[N₂H₄]² [NO₂]²}
Kp = P(N₂)³ P(H₂O)⁴ / {[P(N₂H₄)² P(NO₂)²}

b. 2NbCl₄(g) ⇌ NbCl₃(g) + NbCl₅(g)
Kc = [NbCl₃] [NbCl₅] / [NbCl₄]²
Kp = P(NbCl₃) P(NbCl₅) / P(NbCl₄)²

c. I₂(g) ⇌ 2I(g)
Kc = [I]² / [I₂]
Kp = P(I)² / P(I₂)

d. 2SO₃(g) + CO₂(g) ⇌ CS₂(g) + 4O₂(g)
Kc = [CS₂] [O₂]⁴ / {[SO₃]² [CO₂]}
Kp = P(CS₂) P(O₂)⁴ / {P(SO₃)² P(CO₂)}

👍 2 👎 0

david

2017-04-15 4:24 pm

a. 2N2H4(g)+2NO2(g) <-> 3N2(g)+4H2O(g)

Keq = conc of products (with coeff as exponents) / conc of reactants (with coeff as exponents)

Keq = [N2]^3 [H2O]^4 / [N2H4]^2[NO2]^2

just that easy --- now you try the others

👍 0 👎 0

收錄日期: 2021-04-18 16:57:24
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20170415064742AANjwNT

檢視 Wayback Machine 備份