Water vapor at 100 °C is compressed isothermally at 1 atm until it completely…

CHEMISTRY · Subjective · A Level · Chemistry · Thermodynamics · Thermodynamics

Problem

Water vapor at 100 °C is compressed isothermally at 1 atm until it completely condenses to liquid water. State the sign of

\Delta S

for the water (positive, negative, or zero) and briefly justify your answer in terms of molecular motion and dispersal.