47. Which of the following accurately depicts the primary thermodynamic efficiency () equation for a — Electrochemistry Chemistry Question

💡 Solution & Explanation

The theoretical thermodynamic efficiency of any fuel cell is defined as the ratio of useful electrical work extracted ($\Delta G^\circ$) to the total thermal heat of combustion of the fuel ($\Delta H^\circ$). Thus, $\eta = \Delta G^\circ / \Delta H^\circ$.