1.

10 mL of gas having density 1.6 g mL^(-1) liberated by passing 10 amp for 100 minute . The equivalent mass of gas is

Answer»

2
20
26
18

Solution :FARADAY's `I^(st)` law
`W = (E xxi xx t)/(96500)` and , `W = d xx V = 1.6 xx 10 = 16 g`
`therefore 16 = (E xx 10 xx 100 xx 60)/(96500)`
`E = 25.8 -= 26`


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