\documentclass[10pt]{article} \usepackage{graphicx, multicol, amsmath} \pagestyle{empty} \parindent=0pt \parskip=.1in \newcommand\hs{\hspace{6pt}} \begin{document} \centerline{\large{\textbf{Applying the second law}}} \bigskip Using the second law of thermodynamics, determine which processes are reversible, which are irreversible, and which are impossible. \begin{itemize} \item What happens if you throw an ice cube into water at room temperature? Is the reverse possible? \item What happens if you drop a room-temperature rubber band into ice-cold water? Is the reverse possible? \item You leave a cup of water in a sealed room and some of it evaporates. \item You drop a stone into a bucket of water. \end{itemize} \vfill \leftline{\textit{by David Roundy}} \leftline{\copyright DATE David Roundy} \end{document}