As a sample of argon gas is heated in a sealed container, its root-mean-square speed changes from \(350 \mathrm{~m} / \mathrm{s}\) to \(540 \mathrm{~m} / \mathrm{s}\). By how much has the entropy been increased per argon atom? The mass of an argon atom is \(6.63 \times 10^{-26} \mathrm{~kg}\).