For the balanced reaction at constant temperature and pressure

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

Problem

For the balanced reaction

2\,\text{NO}_{2}(g) \rightarrow \text{N}_{2}\text{O}_{4}(g)

at constant temperature and pressure, determine whether the standard entropy change

\Delta S^{\circ}

is positive, negative, or approximately zero, and briefly state the reasoning behind your choice.