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 ?

Step-by-step solution

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