### Ideal Monatomic Gas Entropy

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**Thu Jan 21, 2016 7:19 pm**Why does "1 mol of the atoms of an ideal monatomic gas" have a greater change in entropy than "1 mol of atoms bound together as diatomic molecules" when temperature in increased?

The book's answer key says it is because the 1 mol of atoms of an ideal monatomic gas has "a greater number of particles." Why is this? Can someone please explain why 1 mol of atoms of an ideal monatomic gas has more particles than 1 mol of atoms bound together as diatomic molecules?

The book's answer key says it is because the 1 mol of atoms of an ideal monatomic gas has "a greater number of particles." Why is this? Can someone please explain why 1 mol of atoms of an ideal monatomic gas has more particles than 1 mol of atoms bound together as diatomic molecules?