Eviewilman
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I have my chemistry exam for paper 1 on Thursday. I was wondering if anyone knew that when a question comes of regarding reversible reactions, the paper will specify wether the reaction is endothermic or exothermic. Exam board is AQA and the paper is Higher Tier.
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The.One.And.Only
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It should do, unless it's reactions we're expected to know about
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Eviewilman
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(Original post by The.One.And.Only)
It should do, unless it's reactions we're expected to know about
Thankyou
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Reversed Flash
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I wish I was doing Edexcel CIE triple science is just too hard ;O
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Eviewilman
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(Original post by Reversed Flash)
I wish I was doing Edexcel CIE triple science is just too hard ;O
Triple science has been the most hated subject on my timetable for the past two years
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WWEKANE
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Yes it does, On the specimen paper it did, but you don't need to revise reversible reactions.They're are on paper 2 arent they?
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Kian Stevens
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Realistically, it has to specify whether it's exothermic or endothermic. The only time I can imagine them not including it is if it genuinely isn't relevant to the question (however, I'm used to A Level questions where it's always provided, so your mileage may vary with GCSE questions).

There'd not be much point in an equilibrium if it didn't have an enthalpy change to accommodate it!
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30041945
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(Original post by WWEKANE)
Yes it does, On the specimen paper it did, but you don't need to revise reversible reactions.They're are on paper 2 arent they?
correct
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EdexcelAreIdiots
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(Original post by Kian Stevens)
Realistically, it has to specify whether it's exothermic or endothermic. The only time I can imagine them not including it is if it genuinely isn't relevant to the question (however, I'm used to A Level questions where it's always provided, so your mileage may vary with GCSE questions).

There'd not be much point in an equilibrium if it didn't have an enthalpy change to accommodate it!
It's one on those things we take for granted at A-level, right?

Anyway (although I imagine they will tell you in the exam):

If the sign is negative (-), forward reaction = exothermic

If the sign is positive (+), forward reaction = endothermic

Good luck revising!
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Kian Stevens
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(Original post by EdexcelAreIdiots)
It's one on those things we take for granted at A-level, right?

Anyway (although I imagine they will tell you in the exam):

If the sign is negative (-), forward reaction = exothermic

If the sign is positive (+), forward reaction = endothermic

Good luck revising!
Yes, very true. But it proves to be invaluable.
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sharri.coco
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(Original post by WWEKANE)
Yes it does, On the specimen paper it did, but you don't need to revise reversible reactions.They're are on paper 2 arent they?
boyyy it's topic 5 on paper one, you better get revising because you're gonna lose like 15 marks if you dont lmao
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Eviewilman
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(Original post by WWEKANE)
Yes it does, On the specimen paper it did, but you don't need to revise reversible reactions.They're are on paper 2 arent they?
no they’re under energy changes which are paper 1🤷🏼*♀️
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Eviewilman
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(Original post by sharri.coco)
boyyy it's topic 5 on paper one, you better get revising because you're gonna lose like 15 marks if you dont lmao
Thank **** you said that I was having a little panic thinking I’d revised the wrong paper fml 😂
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