At a reaction has an entropy change for the system of

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

Problem

298\,\text{K}

a reaction has an entropy change for the system of

\Delta S_{\text{sys}} = -25\,\text{J}\,\text{K}^{-1}

. During the reaction

7.5\,\text{kJ}

of heat is released to the surroundings, which remain at

298\,\text{K}

. Calculate the total entropy change of the universe and state whether the reaction is spontaneous, reversible or impossible at this temperature.