# Industrial : K (EQ. constant) (1 Viewer)

#### Ozz^E

##### Member
Wat did uz get for K....i think i got the answer wrong...but shoul get 2-3 marks for the working, formula etc.

#### gman

##### New Member
i think its 133 1/3 (we dont need units i think)

#### kelbelks

##### New Member
i got something like 148148 but i have no idea how on earth i obtained it and take no responsibility for that answer... i was extremely screwed trying to do it.

#### -=AETOS=-

##### Member
I got 32 something. It can't be like in the thousands cause we are only talking about SO2>S03 equation here

#### sths

##### New Member
hey i got 11.55

is this rite?
if wrong plz explain wot i did wrong guys

so2 + 0.5 o2 --> So3

initial 0.06 0.05 0
change -0.04 -0.02 + 0.04
equli conc 0.02 0.03 0.04

thus using equlibrium formula = 0.04/ (0.03^0.5 x 0.02)

thx .......and hope everybody good luck for the hsc reuslts when they arrive!!!!!!!1

#### ske

##### New Member
yupyup!

theyr both correct...133.3 and 11.5 ish are both correct...coz it depends on whether u balanced it 2-1-2 or 1-1/2-1...one's the root of the other...

#### sths

##### New Member
thx man

hey cool news dude

u sure our teacher never told us this

but does that mean their is an infinite no of possible answers lol?
eg balance 4,2,4
8,4,8

#### Ozz^E

##### Member
I dont think thats correct...theres only one equilibrum constant and its indicative of how much products/reactants are favoured at equilibrium. Using 1-1/2-1 or 2-1-2 shouldnt make any diff...i think the answer is 11.55.

#### kate

##### Member
can i ask.. how you work out the change in concentrations for the reactants?

#### sths

##### New Member
heyis there only 1 value of k constant?

because im finding that if u balance it differently then u get diffrerent results

133.3
and 11.55

so does this mean one of them is wrong

ie.. u cant use calcultions of k wif non integer numbers as in

1 0.5 1 balanced.......

#### Nusrat

##### New Member
i got 133.......i didn't think it needed balancing

#### -=AETOS=-

##### Member
The concentration arnt effected by balancing 11.3 is correct

#### Ozz^E

##### Member
im not too sure...balancing shouldnt effect conc. and there should be only one K, because it is indicative of something.

#### -=AETOS=-

##### Member
K shows to which side equilibrium lies. A k value > 10 means equil lies to the right whilst k<10 means that the equil lies on reactants side.

#### cmore

##### New Member
it matters how u write the equation!

If u write it 2so2 + o2 > r2so3 like i did u get 133.333333333...
but if u write it so2 + 1/2o2 > so3 u get 11.5......

since the k value for the first is the square of the second!

what gives! what is the real k value

#### rent

##### New Member
ske!
you da man!!
hehe (do you know who i am?)

i got 11.55 and 133 is also right! (yay!)

ok, this option is by far the hardest option because it took me over an hour to do this option. It doesn't fair, even with scaling, because when we spend more time on this option, there's less time for us to check and do stuff in the main part. And we have to rote learn industrial processes too!!!!!