science-help

[crude chasm]

though i definitely do not know everything

[tame onyx]

thank you!

thats okay it seems like it's impossible to know anything

[uneven osprey]

can anyone teach me nuclear physics?

modern physics in total? anyone?

help me with the numericals from this topic if there's anyone who can help me out please do contact me 🥲

[noble badger]

Find the potential difference between points X and Y

@noble badger pls solve this question

[thorny gyro]

B

[noble badger]

@thorny gyro yes B is correct ans but how you solve it

[thorny gyro]

The circuit is open, so there’s 0 current through each resistor, ohms law then gives =tex U_{from (+) terminal to X} = 0 (and vice versa with the other side, so U_(X to Y) = U_(between 2 terminals)

=tex U_{abc}

[shell gate]

Rendering failed. Check your code. You can edit your existing message if needed.

[thorny gyro]

Yeah this bot sucks

[noble badger]

Thanks

[thorny gyro]

Q2 please

[tame onyx]

i got a, 0.225

first i found the concentrations by moles / 2

made a Kc equations and just put them in

that’s assuming that there are only 0.15 moles of Cl2 after equilibrium is reached which isn’t clear imo

sorry about how late this is

[thorny gyro]

All good! Could you show me your working if that’s ok?

[tame onyx]

it's super messy so i'll type it:

2L = 2dm^3

i checked the equation is balanced, so we know then that the mole ratio is 1:1:1. so the moles of each are
PCl5: 0.05
PCl3: 0.15
Cl2: 0.15

so then from this we can work out the concentration which is 0.05/2 = 0.025 for PCl5
and 0.15/2 = 0.075 for either of the products

so then we write the Kc expressions which is [products]/[reactants]
and just sub in the values of the concentration
and that's it

in terms of figuring out that PCl5 is 0.05, you just take away the 0.15 since the change in moles for the reactants is -(change in moles of products) (that's assuming they're on a 1:1 ratio)

could be i'm wrong lol but it's one of the potential answers whcih i take as encouraging

[thorny gyro]

Ok ok thank you so much!!!!!!

[tame onyx]

np

[dim robin]

Hey guys 🙋🏽‍♀️ if anyone need a little bit push for studying and focusing with colleagues e.tc add me! We already have make a group "learn and grow with friends" where u can feel free to connect whatever you want, trust the process and fond the courage again! 💫

[boreal seal]

Can someone help me with this question pwese

[crisp ether]

Hi guys.... Can someone tell me the difference between Active Site and Binding Site

[crude chasm]

biggest distinction is that active site allow molecules to bind that will aid in some sort of reaction

[cunning crescent]

c1V1=c2V2

[crude chasm]

reply is above ^

[thorny gyro]

Active site is i think a sub division under binding sites
Active site and allosteric site are both binding sites participating in competitive and non competitive inhibition of an enzyme respectively

[crisp ether]

Then please explain the last statement too please

[thorny gyro]

Ohho the ncert biology noice

I'll explain in a bit

[crisp ether]

Aah...... so u know it....

[thorny gyro]

Yeah
They essentially mean the same thing
Don't stress on it too much

[crisp ether]

Yeah but this year's neet paper is just makes me rethink every statement

[thorny gyro]

More important line is the one directly above it--> projects at regular distance and angle

They can twist it pretty easily

In one of our mocks it said irregular distance and angle
I was stumped there

[crisp ether]

Okay thanks i m gonna highlight that in my book then.....

[crisp ether]

Allen tests??

[thorny gyro]

Dunno

[crude chasm]

It is actually the other way around. active sites are made of binding sites (substrate binds) and a catalytic site.

[thorny gyro]

Binding site and catalytic site?

[crude chasm]

yes!

[thorny gyro]

Explain more

Are these sites different things?

[crude chasm]

binidng and catalytic?

[thorny gyro]

I would need to fact check that

[crude chasm]

but in terms of the competition affecting sites, you are correct

[thorny gyro]

Interesting

[crude chasm]

a definition of an active site suggests some sort of reaction inducing mechanism

simply binding a substrate to the enzyme is not enough which suggests the necessity for an addition "site"

but i m no expert so feel free to lmk i fim wrong

[thorny gyro]

I know there are many theories on how enzyme action actually works
But i don't think any has been approved and accepted by a majority
Much of it is speculation

[crude chasm]

im sure active sites are defined fairly well

[thorny gyro]

There is an addition site?

[crude chasm]

additional means "another"

im just saying theres a catalytic site

[crude chasm]

this seems true to me

[thorny gyro]

Oh okay

[fallen void]

do y’all use any physical physics mechanics books for learning conceptually (i dont think prep books are that good)

[south pelican]

Depends if you can make a connection to what your learn if you can't link it together then no.