IB DP HL Chemistry Paper-1 November 2022: The Ultimate Guide to Solving Every Question in the Paper!

[@zar2698]

In Question 30 how do you know which numbers to subtract to find the net electrode potential?

[@lkh418]

usually, the more negative electrode potential is the anode and the more positive electrode potential is the cathode. Thus, using the formula for the net electrode potential, which is E⦵cell = E⦵cathode - E⦵anode,, we know that it would be the value more positive minus the value more negative.

[@clarahamamji9348]

In question 19, the question asks about the rate of an exothermic reaction rather than that on an endothermic one. Wouldn’t an increase in temperature decrease the rate of the forward reaction and favour the reverse? 29:01

[@leosahlen8917]

thats what I had as well, have you gotten any confirmation?

[@prateekbasavaraj3208]

You're describing Le Chatelier's principle.. but this doesn't work for ALL reversible reactions. This principle only works for reversible reactions that are IN EQUILIBRIUM.

[@prateekbasavaraj3208]

Honestly, when I think about it, any reversible reaction would eventually reach equilibrium. So, what I said probably doesn't make sense either. I don't know lmao

[@crisperez7601]

Thank you so much! Just saved me

[@ib3604]

You're welcome.💙 More videos are on the way