A sealed piston–cylinder device contains of gas at with an initial volume of

CHEMISTRY · Subjective · AP · Chemistry · Properties of Substances and Mixtures · Properties of Substances and Mixtures

Problem

A sealed piston–cylinder device contains

4.00\,\text{g}

\mathrm{O_2}

gas at

300\,\text{K}

with an initial volume of

2.50\,\text{L}

. The gas is heated to

425\,\text{K}

, and the piston moves so that the volume increases to

3.10\,\text{L}

. Using ideal-gas behavior, determine the final pressure of the oxygen gas in atmospheres. (Molar mass of

\mathrm{O_2}=32.0\,\text{g}\,\text{mol}^{-1}