Solveeit Logo
Login

Question

Chemistry Question on Electrochemistry

In the electrolysis of water, one faraday of electrical energy would evolve at STP

A

one mole of oxygen

B

one g atom of oxygen

C

8 g of oxygen

D

22.4 litres of oxygen

Answer

8 g of oxygen

Explanation

Solution

2H2O−>O2+4H++4e−2H_2O {->} O_2 + 4H^+ + 4e^- 44 faraday produce O2=32 gO_2 = 32\,g 11 faraday produce O2=324=8 gO_2 = \frac{32}{4} = 8\,g