Recall the balloon race demo. a. Imagine the pink balloon is filled with 2.0 L o

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?

Explanation / Answer

Q7

a)

V = 2 L of Argon

V = 1 L of argon, same T

P = same

So...

The larger volume, the faster loss, i.e. the rat eis faster

Because there is more pressure exerted on it.

b)

1 mol of He each

liquid N vs N gas

the first to lose content is N at room T, since the diffusion of Nitrogen gas has less resitance to Nitrogen as a liquid

c)

5 mol o fHe vs. 0.1 mol of Xe

note that, we are interested in number of particles, not their mass

so the most atoms is in Helium, so helium will go faster than 0.1 mol of Xenon

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