Suppose the balloon in Example 15.2 contains nitrogen molecules instead of helium atoms....

Suppose the balloon in Example 15.2 contains nitrogen molecules instead of helium atoms. How does that affect the number of particles N in the balloon?

(a) There is no change. The number of nitrogen molecules would be equal to the number of helium atoms found in Example 15.2.

(b) The number of nitrogen molecules is twice the number of helium atoms found in Example 15.2.

(c) The number of nitrogen molecules is half the number of helium atoms found in Example 15.2.

(reference example 15.2)