Consider three sealed tanks all at the same temperature, pressure, and volume Tank A contains \(\mathrm{SO}_{2}\) gas. Tank B contains \(\mathrm{O}_{2}\) gas. Tank C contains \(\mathrm{CH}_{4}\) gas.

Question: Compare the properties of SO2, O2, and CH4 gases in three tanks A, B, and C, all at the same temperature, pressure, and volume. Calculate the total number of moles of gas in each tank, the average mass of the gas particles in each tank, and the density of each gas in the tanks. Answer: All three tanks have the same number of moles (n) since their temperature, pressure, and volume are the same. However, the average mass of gas particles and the density of the gases differ due to their different molar masses. The molar masses are 64 g/mol for SO2, 32 g/mol for O2, and 16 g/mol for CH4. The average mass of particles and density can be calculated for each gas using these molar masses and the volume of the tanks.