An ideal gas at 15°C and a pressure of 2 x 10<sup>5</sup> Pa is enclosed in a tank of 1.5 L. Determine the
number of moles of gas in the container. If the gas then expands to twice its original volume, while the
pressure falls to atmospheric pressure, what is its final temperature?
18.5 moles, 0.125 °C
0 0.125 moles, 0°K
0 0.125 moles, 292 °C
0 0.125 moles, 18.5 °C
0 0 moles, 273.15 °C
0 18.5 moles, 292°K
0 0.125 moles, 18.5°K