larissa67
Badges: 9
Rep:
?
#1
Report Thread starter 1 year ago
#1
Hey, I'm currently struggling with constructing Hess Cycles in AS Chemistry.

I understand the theory and concepts behind it, I just don't understand in which cases the arrows point down away or upwards towards the original equation? Is there a general rule that in Hess cycles of combustion/formation the arrows have a certain way that they should be pointing?

Thanks
0
reply
sims1025
Badges: 6
Rep:
?
#2
Report 1 year ago
#2
In the cycle, there are 3 sides (usually). the direction of the arrow is the longest continuous path, before you reach the opposing direction. ( imagine a vector triangle, that helps. draw your arrow until you get to your resultant vector.)
0
reply
X

Quick Reply

Attached files
Write a reply...
Reply
new posts
Back
to top
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise

What factors affect your mental health the most right now? (select all that apply)

Lack of purpose or routine (121)
15.69%
Uncertainty around my education (125)
16.21%
Uncertainty around my future career prospects (72)
9.34%
Isolating with family (51)
6.61%
Lack of support system (eg. Teachers, counsellors) (30)
3.89%
Lack of exercise/ability to be outside (66)
8.56%
Loneliness (81)
10.51%
Financial worries (32)
4.15%
Concern about myself or my loved ones getting ill (70)
9.08%
Exposure to negative news/social media (50)
6.49%
Lack of real life entertainment (eg. cinema, gigs, restaurants) (73)
9.47%

Watched Threads

View All
Latest
My Feed