${?}^{}$ A $0\mathrm{.}750-$L cup of coffee at $75\mathrm{.}0C$ is left outside where the temperature is $4\mathrm{.}00C.$ Assume the properties of coffee are identical to those of water.

When the coffee reaches thermal equilibrium with the atmosphere, by how much has the entropy $S_{\text{a}\text{t}\text{m}}$ of the atmosphere changed?

$S_{\text{a}\text{t}\text{m}}=$

$$ J$/$Ka