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**Problem**: Consider the flasks in the following diagrams.c. Solve for the final pressure in terms of the original pressures of helium and neon. Assume temperature is constant.

###### FREE Expert Solution

###### FREE Expert Solution

We’re being asked to solve for the final pressure in terms of the original pressures of helium and neon.

Recall that the ** partial pressure of a gas (P_{Gas})** in a mixture is given by:

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

where:

**χ**** _{Gas}** = mole fraction of the gas

**P _{total}** = total pressure of the gas mixture

**Mole fraction** can be calculated using the equation shown below:

$\overline{){{\mathbf{\chi}}}_{{\mathbf{Gas}}{\mathbf{}}{\mathbf{1}}}{\mathbf{=}}\left(\frac{\mathbf{moles}\mathbf{}\mathbf{Gas}\mathbf{}\mathbf{1}}{\mathbf{Total}\mathbf{}\mathbf{Moles}}\right)}$

**Calculate the mole fraction of each gas:**

###### Problem Details

Consider the flasks in the following diagrams.

c. Solve for the final pressure in terms of the original pressures of helium and neon. Assume temperature is constant.

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