Q21: 21 At 550 K, the Kc for the following reaction is 104 mol-1 L X(g) +Y(g) - Chemistry -

Question

Q21:

21 At 550 K, the Kc for the following reaction is
104 mol-1 L
X(g) +Y(g) ⇌ Z(g)
At equilibrium, it was observed that
X = 1 2 Y = 1 2 Z
What is the value of [Z] ( in mol L-1) at equilibrium
?
(a) 2 x 10-4 (b) 10-4 (c) 2 x 10-4
(d) 104

Geetha · Accepted Answer

For the equilibriumX+Y ↔ZKc = [Z][X][Y]104 =[Z]12[Z]×[Z]  since [X]=12[Y] =12[Z]       = 112[Z] =2[Z][Z] =2 104   = 2 × 10-4 mol/LThus option a is correct

Q21: 21. At 550 K, the Kc for the following reaction is 104 mol-1 L. X(g) +Y(g) ⇌ Z(g) At equilibrium, it was observed that X = 1 2 Y = 1 2 Z What is the value of [Z] ( in mol L-1) at equilibrium ? (a) 2 x 10-4 (b) 10-4 (c) 2 x 10-4 (d) 104

Q21:

21. At 550 K, the K_c for the following reaction is 10⁴ mol^-1 L.
X_(g)+Y_(g) $⇌$ Z_(g)
At equilibrium, it was observed that
$[X] = \frac{1}{2} [Y] = \frac{1}{2} [Z]$
What is the value of [Z] ( in mol L^-1) at equilibrium ?
(a) 2 x 10^-4 (b) 10^-4 (c) 2 x 10^-4 (d) 10⁴