Join TSR now and get all your revision questions answeredSign up now

anticlockwise rule Watch

    • Thread Starter
    Offline

    0
    ReputationRep:
    Hi really dont understand the anticlock wise rule....i dont see what its used for and why its used
    also when asked to write the half equation how are you suposed to know which direction a reaction goes in i.e fe2+---> fe3+ + e- or fe3+ + e------>Fe2+

    thanks
    • Thread Starter
    Offline

    0
    ReputationRep:
    anyone?????
    Offline

    1
    ReputationRep:
    Try reading link1, link 2, example. Link 2 offers an alternative way of thinking about it. If you still don't understand it, say so and I'll try and go over it .
    • Thread Starter
    Offline

    0
    ReputationRep:
    thanks so much rubs!!!!
    Offline

    0
    ReputationRep:
    V. useful!
    Offline

    3
    ReputationRep:
    Anti clockwise rule can be quite time consuming sometimes, have you heard of RHE - LHE calculation of E(cell) value? If it is positive, then the reaction is spontaneous(depends on how positive it is)

    If it is negative, then the reaction is not spontaneous, or sometimes won't go if it is very negative - eqm constant will be very small, reactants side favoured.
 
 
 
Poll
Is GoT overrated?

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Quick reply
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.