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1. A sample of methane gas at a pressure of 836 mm Hg and a temperature...

1. A sample of methane gas at a pressure of 836 mm Hg and a temperature of 84 °C, occupies a volume of 8.51 liters. If the gas is cooled at constant pressure to a temperature of 45 °C, the volume of the gas sample will be L.

2. The average molecular speed in a sample of Xe gas at a certain temperature is 238 m/s.

The average molecular speed in a sample of NH3 gas is m/s at the same temperature.

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