help plz or a or ward reaction 2 A 8 what 1vnal B Kc C 2 Kc

help plz

or a or ward reaction, 2 A= 8, what 1vnal B) Kc C) 2 Kc D) (Ke2 4. Nittic oside reacts with osysgen to form nitrogen dionide 2 NO(g)+ 02(8)2 NO2(8) What is Ke for the reverse reaction if the equilibrium concentra M, and NO2 is 0.530 M at 25°C? A) 0.0340 B) 0.0641 C) 0.624 D) 15.6 5. For the reaction: N2(g) + 2 O2(g-2 NO2(g), KC-83x 10-10 at 25% of N2 gas at equilibrium when the concentration of NO2 is twice the A) 2.1 x 10-10 M B) 4.2 x 10-10 M C) 24 x 109 M D) 4.8 x 109 M á kp is related to Kc by the equation Kp= Kc (RT)n. What is th below? NH4N03(s) N2O(g) + 2H -2

Solution

Q-4:-Kc for reverse reaction = [NO]^2 [O2]/[NO2]^2
Kc=0.0642,So (B) is correct

Q-5:-  Kc = [NO2]^2 / ([N2][O2]^2)

[N2]= ?

[N2] = 2^2/1x 1/8.3 x 10-10

So D. 4.8 x 109 M is correct

Q:20:-All of the 4 salts are 1 : 1 salts. Therefore, the smaller the Kc (Ksp), the less soluble the salt is.
SrCO is the least soluble because it has the smallest Kc.

Answer: SrCO, Kc = 5.6 × 10¹

Q:21-Option C is correct i.e, reaction will not change,it is at equilibrium

Q:-22-Option C is correct

Q:-23- C. The concentration of [CoCl4]2- increases.

Q:12-Option A is correct i.e, I. pure liquids and II. pure solids

Q:13-This is the equilibrium equation and Keq expression.
Keq = (Fe^2+)(H2S)(H2O)^2/H3O^+)^2
Some may not include the H2O in the constant; the general rule is it isn\'t included EXCEPT where it is involved in the reaction. Since it is produced in the reaction I included it.

So Option B is correct