Galvanic cells: anodes, cathodes, signs and charges
Issue 341 | Page 107 | Published Jun 2011
Description
Electrochemistry is a difficult subject for students at school and beyond and even for their teachers. This article explores the difficult 'truth' that, when a current flows from a galvanic cell, positive ions within the cell electrolyte move towards the electrode labelled positive. This seems to contravene the basic rule that like charges repel one another.
More from this issue
These notes describe six practical activities for supplementing standard practical work in radioactivity. They are based on a series of workshops...
Derivation of the law of radioactive decay is considered without prior knowledge of calculus or the exponential series. Calculus notation and...
This article focuses on comparing the experiential differences between male and female students in GCSE ICT and A-level Computing and ICT lessons...