QCEVault

Chemical synthesis — Question 91

Original QCE Vault practice · 6 marks

Q91 · Practice questionComplex unfamiliar6 marks

QUESTION 91 (6 marks)

An acidic hydrogen–oxygen fuel cell supplies 2.00 A for 1.00 h. Use F=96485 Cmol−1 and gas molar volume 24.8 Lmol−1. Exactly 50.0% of the hydrogen fed into the cell reacts; assume all current comes from hydrogen oxidation.

a) Write the balanced anode half-equation. [1 marks]

b) Calculate the hydrogen volume consumed and oxygen volume consumed. [4 marks]

c) Calculate the hydrogen volume that must be supplied. [1 marks]

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