In a C u -voltameter, mass deposited in 30 s is 'm' g. If the time-current graph is shown in the following figure: What is the electrochemical equivalent of C u ?

Question

In a C u -voltameter, mass deposited in 30 s is 'm' g. If the time-current graph is shown in the following figure: What is the electrochemical equivalent of C u ?, m / 2, m / 3, m / 4, m 63.5

MARKS App · Accepted Answer

T o t a l c u r r e n t p a s s e d i n 30 s e c = Area of current-time curve = ( 1 2 × 100 × 10 ) + ( 100 × 10 ) + ( 100 × 10 ) + ( 1 2 × 100 × 10 ) = 3 × 100 × 10 m A × s = 3000 × 10 – 3 a m p s = 3 C W = E Q F or W Q = E F = Z = m 3

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