Home › CBSE Class 12 (Science) › Chemistry › Electrochemistry › If a cell reaction is doubled, what happens to i…
If a cell reaction is doubled, what happens to its emf and DrG?
ABoth of them double
BBoth stay unchanged
Cemf doubles only
Demf same, DrG doubles
Answer & Solution
Correct answer: D. emf same, DrG doubles
Emf is intensive and unchanged, but n doubles so DrG = -nFE doubles.
Related questions
Which gas combustion gives only water, making it central to the Hydrogen Economy?Which metal is mentioned for a sacrificial electrode to protect iron?What is the chemical form of rust?What is the overall Eo of the cell for rusting of iron?What is the Eo of the Fe2+/Fe couple in the corrosion reaction?During rusting of iron, the spot that acts as the anode undergoes what?The rusting of iron needs the presence of what?What useful by-product of the Apollo fuel cell was used by astronauts?