KEAM 2019 Physics and Chemistry Paper

Question : 117 of 120

Marks: +1, -0

A fuel cell operates at constant current, with H2 fuel (1 bar) and O2 oxidant (1 bar). The electrolyte used is 0.001 M HCl and the product(s) of the reaction are confined inside the fuel cell. Which of the following is true about the electrolyte?

Boiling point of the electrolyte decreases with increase in the duration of fuel cell operation
Boiling point of the electrolyte increases with increase in the duration of fuel cell operation
Open circuit voltage of the fuel cell remains constant with increase in duration of operation
Open circuit voltage of the fuel cell increases with increase in duration of operation
Both (A) and (C)

Validate

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