Question

Recall the balloon race demo.

a. Imagine the pink balloon is filled with 2.0 L of dry Argon gas, while the yellow balloon is filled with 1.0 L of the same gas, at the same temperature. After the stopcock is opened, which balloon will lose half of its content more quickly? Why?

b. Now instead, imagine to have two balloons inflated with 1.0 mol of helium each. One is placed in liquid nitrogen, while the other is at room temperature. Which one will lose half of its content more quickly? Why?

c. Finally, let’s consider the scenario in which the pink balloon contains 5.0 mol of Helium, while the yellow balloon contains 0.1 mol of Xenon. Which one will lose half of its content more quickly?

Answer 1

a) pink balloon will lose half of its content due to pressure or concentration.As no, of molecules increases the collision between the molecules and walls of balloon increases hence pressure increases and depletes fast.

b) The balloon at room temperatures will deplete fast as rate of diffusion is directly praportional to temperature. Beause liquid Nitrogen temp.is -196 C.

c) Pink balloon will lose half of its content quickly, because rate of diffusion is inversely praportional to molecular wt. He is lighter in weight than Xenon.