Chemistry · Electrochemistry · The First Law & Thermochemistry
Problem
An electrochemical cell is fueled by the combustion of butane at 1 bar and 298 K. Its cell potential is (X/F) × 10³ volts, where F is the Faraday constant. The value of X is _____. Use: Standard Gibbs energies of formation at 298 K are: ΔfG°CO₂ = −394 kJ mol⁻¹; ΔfG°water = −237 kJ mol⁻¹; ΔfG°butane = −18 kJ mol⁻¹