Recent content by storm13

Your hint helped me. Thank you. I am pretty sure i understand it now. The left over bit of H2 would defintely make the difference. I had been playing around with the values on the graphs and realized i was making assumptions of all the values, which meant the ratio was different. But a key...

Yes I understand that's the rule and you have to learn it but i what i really don't understand is why the graphs don't reflect this. Am i missing something? Graph 1 in the attachment : the ratio at Equilibrium before and after the disturbance are not equal, whereas in graph 2 they are??

Homework Statement What is the effect on the system below which is already at equilibrium if extra hydrogen was added? How is the amount of I2 different? Homework Equations 2HI ⇔ H2 + I2 The Attempt at a Solution I am finding effects the addition or removal of a substance at...

Thanks again. Appreciate it.

Thank you for that help. This is what i got for the rest. 0 = 120 000√(x^2 - 25) - 96 000x 96000x = 120 000√(x^2 - 25) x = 1.25√(x^2 - 25) x^2 = 1.5625(x^2 - 25) x^2 = 1.5625x^2 - 39.0625 x^2 + 39.0625 = 1.5625x^2 39.0625 = 0.5625x^2 69.44 ≈ x^2 8.333 ≈ x Is my working correct...

Well if i use the chain rule to differentiate i think this is what i get: (for the middle part): =1/2 . 96000(x^2 - 25)^-1/2 . (2x) [Note using (.) to mean multiplication] =48000(x^2 - 25)^-1/2 . (2x) = 96000x(x^2 - 25)^-1/2 So the derivative of the total coat...

Homework Statement Albany is 12km north of Rochedale. Bells Creek is 5km west of Albany. The road is to be repaired and repairs cost $96 000 per km. The cost of laying a new road is $120 000 per km. It has been decided to repair the old road from Rochedale as far as point K, and then to...