Minimum Heat Released from a Fuel Cell. Suppose a fuel cell that operates at 25°C (298 K) and 1 atm forms liquid water (that is, we are working with the HHV of the hydrogen fuel):
H₂​ + 1/2​ O₂​ → H₂​O(l) ΔH = −285.8 kJ/mol of H₂
a. Find the minimum amount of heat rejected per mole of H₂