<span>lower than the boiling point of water
</span>
Answer:
[H₂] = 0.0248M
Explanation:
For the reaction:
H₂(g) + I₂(g) ⇋ 2 HI(g)
Kc is defined as:
Kc = [HI]² / [I₂][H₂] = 49
For the initial concentrations, Q of reaction is:
Q = [0.127M]² / [0.048M][0.048M] = 7
As Kc > Q, the reaction shift to the right, doing equilibrium concentrations as:
[I₂] = 0.048M - x
[H₂] = 0.048M - x
[HI] = 0.127M + 2x
Replacing in Kc:
49 = (0.127+2X)² / (0.048-X)²
49 = 0.0161 + 0.508X + 4X² / 0.002304 - 0.096X + X²
0.1129 - 4.704X + 49X² = 0.0161 + 0.508X + 4X²
0.0968 - 5.212X + 45X² = 0
Solving for X:
<em>X = 0.0232M</em>
Thus, equilibrium concentration of hydrogen gas is:
[H₂] = 0.048M - x = 0.048M - 0.0232M = <em>0.0248M</em>
Method 1 Finding Average Velocity
Find average velocity when acceleration is constant.
Set up an equation with position and time instead.
Find the distance between the start and end points.
Calculate the change in time.
Divide the total displacement by the total time.
Solve problems in two dimensions.
Answer:
The Letter I
Explanation:
There are two flat horizontal lines. Those are phase changes. I is the solid state before the first phase change where the substance goes from a solid to a liquid.
So the answer is I