what did u guys put for the question where i forgot what but something is made at 250 degrees celsius but and 100 atmospheres but it has the highest yield at 150 degrees? i was so lost on that question

also the one where it was like a catalyst is added what effect will it have on the position of equilibrium i think maybe for the same question not sure.

Reply 64

qas1232

9

Original post by alisonstrueth

how did it go??

Original post by nyxonline

i found it alright, better than paper 1 i think, wbu

Original post by 111maths444

what did people get for the choosing polymer question?
and what did people put for the 6 marker?

Original post by 111maths444

also what did ppl put for the last 5 marker? which titre values did everyone use

Original post by abizz

Did everyone get mostly c and b for multiple choice questions

Original post by Student16061

Yup
What did you guys get for the first mcq?

Original post by marwa_123

said that it was finite

Original post by abizz

i chose steel because overall it produced less c02 emissions and then you couldve talked about electorlysis and how it uses too much energy which is bad for environment

Original post by abizz

i said it was non-renewable

Original post by djjjjjjjjjj

the polymer 1 marker was condensation

Original post by djjjjjjjjjj

i got 4.704

Original post by 111maths444

yh same

Original post by 111maths444

no the one when u had to choose one for the plastic cup thing

Original post by nyxonline

i put C for that one but idk

Original post by abizz

did everyone get 46.8 for yield question

Original post by Okiiiip

Quick answers for calculation dump : 4.704 for last question, average titre 24, yield 46.8, 96cm for volume

also what did u guys get for the fractional distillation question so confusing honestly

Reply 65

icebear05

8

Original post by Okiiiip

Tell me the answer to this question

D?/

Reply 66

Okiiiip

4

Original post by alisonstrueth

D?/

Exactly so how is it 30, when the peak on the far right was 52.

Reply 67

icebear05

8

Original post by Okiiiip

Exactly so how is it 30, when the peak on the far right was 52.

sorry i misunderstood in the exam

Reply 68

Okiiiip

4

Original post by alisonstrueth

sorry i misunderstood in the exam

No need to apologise only one mark tbh, but some ppl did get 30 so idk but I’m pretty sure I’m right.

Reply 69

5gy( j

Was the mass spectrometer question a one marker

(edited 10 months ago)

Reply 70

marwa_123

2

Original post by qas1232

what did u guys put for the question where i forgot what but something is made at 250 degrees celsius but and 100 atmospheres but it has the highest yield at 150 degrees? i was so lost on that question

also the one where it was like a catalyst is added what effect will it have on the position of equilibrium i think maybe for the same question not sure.

I'm pretty sure for the temperature question it was just cause the rate of reaction would be too slow. also a catalyst doesn't affect the equilibrium position because in the end the yield would be the same

Reply 71

qas1232

9

Original post by marwa_123

I'm pretty sure for the temperature question it was just cause the rate of reaction would be too slow. also a catalyst doesn't affect the equilibrium position because in the end the yield would be the same

ohh that makes sense tysmm

Reply 72

icebear05

8

Original post by 5gy( j

Was the mass spectrometer question a one marker

yep

Reply 73

hiriw

1

what did ppl put for the crude oil one??? i can’t remember which one it was but i put the one with 17%

Reply 74

1iwbebdi

Original post by hiriw

what did ppl put for the crude oil one??? i can’t remember which one it was but i put the one with 17%

Was it not the one with 58% cuz demand was high for it

Reply 75

Nemesis2392

Original post by alisonstrueth

did anyone else get 30 for this question??

yeahhhhhh

Reply 76

Aadvaita

1

Original post by Student16061

What did u guys get for the cell mcq?

B... they recycled that question from a past paper bc it came up in my mock (!!)

Reply 77

nia01207

8

Original post by hiriw

what did ppl put for the crude oil one??? i can’t remember which one it was but i put the one with 17%

the one where they ask which one they crack? wasnt it like kerosene or smth that had a high supply but low demand

Reply 78

Dazza06

1

Original post by nia01207

I’m so ****ed cause I changed my answer for the concordant titre question from 24 to 24.05 and that means I got the final question wrong too ☹️☹️☹️ hope I get ecf marks at least

That is the correct titre dw u should get like 4.71g/dm^3 at the very end

Reply 79

Dazza06

1

Original post by hiriw

what did ppl put for the crude oil one??? i can’t remember which one it was but i put the one with 17%

I did the fuel oil because the demand was really low and the supply was really high so it meant you can produce more smaller molecules compared to kerosene or the other one which the gap between the demand and supply was very small ~ 5% for each

OCR A GCSE Chemistry Paper 4 Higher Tier (J248 04) - 13th June 2023 [Exam Chat]

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