what was the answer for why the positive elctrode had to be replaced? I said because gas is produced at the positive electrode and it can corrode the electrode

Reply 8

meriem_ait

Same

Original post by nabihaa

I got 0.62 and then 34.72 for the second one

Reply 9

nabihaa

what was the reason for it being an exothermic reaction, I put the energy used to make bonds was greater than the energy released

Reply 10

tanyapriya

how did everyone find it ???

Reply 11

meriem_ait

Yh that’s what I said and how the anode is made up of carbon which would react With oxygen to make carbon dioxiede

Original post by kandy1023

what was the answer for why the positive elctrode had to be replaced? I said because gas is produced at the positive electrode and it can corrode the electrode

Reply 12

meriem_ait

Good! A lot of ppl came out saying it was hard thou

Original post by tanyapriya

how did everyone find it ???

Reply 13

meriem_ait

Yh same

Original post by nabihaa

what was the reason for it being an exothermic reaction, I put the energy used to make bonds was greater than the energy released

Reply 14

Jmander

Said the same thing

Original post by kandy1023

what was the answer for why the positive elctrode had to be replaced? I said because gas is produced at the positive electrode and it can corrode the electrode

Reply 15

daeho14

Original post by nabihaa

what was the reason for it being an exothermic reaction, I put the energy used to make bonds was greater than the energy released

That’s what I put as well but I put greater than the energy used to break bonds in the reactants

Reply 16

Ddfvbjjjhgvvh

I got 0.617777777 so did u lot just round to 6.2

Reply 17

Evil Homer

TSR Community Staff

Hope the exam went well!

Reply 18

charlieost

-1200 ish (cant remember the exact number) on the bond energies. And i got 200kg ish for the mass of oxygen however i am not confident :frown:

Reply 19

ridaax

Original post by kandy1023

what was the answer for why the positive elctrode had to be replaced? I said because gas is produced at the positive electrode and it can corrode the electrode