Considering H2(g) + I2(g) ↔ 2HI and temperature = 731K, 1.20 mol of H2 and 1.20 mol of I2 are placed in a 1.00 L vessel. What is the equilibrium concentration of I2 in the gaseous mixture? The equilibrium constant is K = 49.0
1 Answer
Oct 8, 2014
The equilibrium concentration of I₂ is 0.933 mol/L.
We start with the balanced chemical equation for the equilibrium.
H₂ + I₂ ⇌ 2HI
Then we write the
Next, we set up an ICE table:
#"H"_2 + "I"_2 ⇌ 2"HI"#
I/mol·L⁻¹: 1.20; 1.20; 0
C/ mol·L⁻¹: -
E/ mol·L⁻¹: 1.20-
Insert these values into the
[I₂] = (1.20 –
Here's a video that does a similar calculation.