The open circuit voltage of a hydrogen-oxygen fuel cell operating at RTP is 0.96

Question

The open circuit voltage of a hydrogen-oxygen fuel cell operating at RTP is 0.96 V and its internal resistance is 1.2 m Ohm. The activation voltage drop is given by Vact =0.031 + 0.015 ln I where I is in amperes. From thermodynamic data, the reversible voltage, Vrev is known to be 1.20 V. Two hundred of the above cells are connected in series forming a battery that feeds a resistive load rated at 2.5 kW at 100 V. Determine the actual load voltage [V], and the thermal energy [W] generated internally.

Explanation / Answer

you are given power and power is voltage*current expression for vout is also given along with the thermodynamic parameters i feel subtituing the values gives the answer fing current first then vout then resistance and proceed

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