1a. A container of volume 3.2 × 10-6 m3 is filled with helium gas at a...

1a. A container of volume 3.2 × 10-6 m3 is filled with helium gas at a pressure of 5.1 × 105 Pa and temperature 320 K. Assume that this sample of helium gas behaves as an ideal gas.

The molar mass of helium is 4.0 g mol-1. Show that the mass of a helium atom is 6.6 × 10-27 kg.

1b. Estimate the average speed of the helium atoms in the container.

1c. Show that the number of helium atoms in the container is about 4 × 1020.

1d. A helium atom has a volume of 4.9 × 10-31 m3.

Calculate the ratio total volume of helium atomsvolume of helium gas.

1e. Explain, using your answer to (d)(i) and with reference to the kinetic model, why this sample of helium can be assumed to be an ideal gas.

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genius_generous answered 1 year ago

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