Chemistry · THERMODYNAMICS

An ideal gas undergoes reversible isothermal expansion at temperature \( T \) absorbing heat \( q_{\text{rev}} \). If the surroundings absorb heat irreversibly at the same temperature \( T \), what is \( \Delta S_{\text{total}} \) for the overall process?

1. \( \Delta S_{\text{total}} = -\frac{q_{\text{rev}}}{T} \)
2. \( \Delta S_{\text{total}} > 0 \)
3. \( \Delta S_{\text{total}} < 0 \)
4. \( \Delta S_{\text{total}} = 0 \)