One of the four bottles contained 2 moles of gas rather thsan 1 mole. describe how this might change the gas sample behavior in terms of particle speed distribution

Based on the dependence of the Maxwell-Boltzmann distribution on gas molecules. On average, inside the bottle, the heavier molecules (2 moles of gas) will move more slowly than lighter molecules (if replace). Therefore, heavier molecules will have a smaller speed distribution, while lighter molecules will have a speed distribution that is more spread out and also the average speed, which is the sum of the speeds of all of the particles divided by the number of particles will be bigger in the former than the later.