# Problem: The following reaction occurs in a closed container:A(g) + 2 B(g) → 2 C(g)A reaction mixture initially contains 1.6 L of A and 2.1 L of B.Assuming that the volume and temperature of the reaction mixture remain constant, what is the percent change in pressure if the reaction goes to completion?

###### FREE Expert Solution

Determine the partial pressure of A and B.

Recall that the partial pressure of a gas (PGas) in a mixture is given by:

$\overline{){{\mathbf{P}}}_{{\mathbf{gas}}}{\mathbf{=}}{{\mathbf{\chi }}}_{{\mathbf{gas}}}{{\mathbf{P}}}_{{\mathbf{total}}}}$

where:

χGas = mole fraction of the gas
Ptotal = total pressure of the gas mixture

Assuming the volume fraction is equal to the mole fraction.

χA = 0.4324

χB = 0.5675

Determine the partial pressure of A and B:

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###### Problem Details

The following reaction occurs in a closed container:
A(g) + 2 B(g) → 2 C(g)
A reaction mixture initially contains 1.6 L of A and 2.1 L of B.

Assuming that the volume and temperature of the reaction mixture remain constant, what is the percent change in pressure if the reaction goes to completion?