Equilibrium Constant, Kc | A level Chemistry

A level Chemistry.

Physical Chemistry | Year 1

Explanation of Equilibrium constant and Kc calculations.

[MCG]

your explanation of why Kc isn't affected by conc. is soo good. I was just thinking about it and you answered it perfectly. thanks!

[Zen_Zen_Zense]

31:50 thats the most perfect way of explaining why pressure doesn't affect Kc, thank you so much

[sofialk]

your chemistry videos are amazing and getting me through the AS module, thank you so much !!!!

[angel-lhsh]

Hi Sir, is it necessary for those doing AQA A level chemistry to memorise the details of the experiment to deduce Kc or had you used it as an example to show how we would go about it? As I'm unsure whether to add it to my notes or not as I don't see a mention of it in the specification, but know sometimes they can throw in application questions such as this. Thanks in advance!

[hammad]

Hi sir, are quadratic equations in kc calculations in the spec? Would it be worth to practice?

[aleezaomer]

Hi! your video really helped me understand this for my exam.
i was wondering if you have made a video on Kp too?

[lfragonard]

Hello, it is a very informative video! I was wondering what does mol -1 dm 3 mean in terms of solubility/concentration since mol 1 dm-3 means 'this many x mols per (1)litre or dm3 ' ; how can the reverse still express the concentration of a solution?


Thank you!

[frizzyred]

there is shortcut way if you know how to subtract the units with the implied 1 after mol. if you have 5 mols of product minus 3 moles of reactants for example, the units would be mol 2 dm -6. Sorry dont know how to type subscripts. Just use the two exponent from 5-3, put it outside the brackets and work it into the units i.e, 2( mol dm -3).

[maryamhussain]

At 25.08 why is the 4 squared and not just times two because there are two moles of Y? 😅😅😅 if there was 3 moles what would I do? Times it by 3 or do 3 cubed 😢

[sklf]

wish id seen this sooner, would have helped me in my paper 2 as well

[ruhmaamin]

thank you so much this video was so helpful

[captain]

the c method for calculating units is so helpful!

[alizahmohammed]

i dont really understand the experiment to determine kc and how concentration and pressure dont affect its value?

[generation]

what is they arent on the same state? how would it vary

[jannahfazil]

thank you so so much your videos are so helpful please make some on other units like kinetics and bonding thank you

[soyadrink]

I don't understand. If we increase temperature the enthalpy change is endothermic therefore shifting to the left:

Reactants----》products


But if the forward reaction is exothermic then we have to decrease temperature to shift equilibrium to the reacntans? Why???