DIFFICULT CHEM QUESTION??

[matt123]

Q. Explain why Temperature is the ONLY factor which can influence/change the value of K.


any ideas?
cheers.

[crayolé]

Where did you get this one?

I don't think it's in the course - Mao explains it somewhere but  it's pretty mathsy. I'll tryt to find the post

EDIT: There we go Try replicating that for two marks in the exam ;P

[matt123]

Where did you get this one?

I don't think it's in the course - Mao explains it somewhere but  it's pretty mathsy. I'll tryt to find the post

EDIT: There we go Try replicating that for two marks in the exam ;P

Just thought of it.
i think the examiners this year will ask it.

[Mao]

NO, you won't be asked why K only depends on temperature. That's a rather difficult kinetics question. Two things can happen:

1. They ask you that, which further proves the point that VCAA don't have scientists. The required answer would go something like 'changing anything else doesn't change K just because it doesn't'

2. They don't ask you that. Period.

[matt123]

NO, you won't be asked why K only depends on temperature. That's a rather difficult kinetics question. Two things can happen:

1. They ask you that, which further proves the point that VCAA don't have scientists. The required answer would go something like 'changing anything else doesn't change K just because it doesn't'

2. They don't ask you that. Period.

Hahahah I love it.
well thank god.
kus I think id be pretty effed if they did

[iffets12345]

NO, you won't be asked why K only depends on temperature. That's a rather difficult kinetics question. Two things can happen:

1. They ask you that, which further proves the point that VCAA don't have scientists. The required answer would go something like 'changing anything else doesn't change K just because it doesn't'

2. They don't ask you that. Period.

+1.

[taiga]

there is no K in temperature, hence the system tries to make a move so that there is a k in temperature, like temperakure

[masonnnn]

luld

[Martoman]

I didn't think it was too hard Mao at all, correct me if i'm wrong here but...

From memory its something like
 a ratio in terms of a ln

, T1 and K1 is a known K at a temp. T2 and K2 is unknown.

For exothermic reaction, delta H = -ve

Then notice that the main things of concern is



Then if T2 is bigger than T1 the ratio decreases, so we are going more to the left of a reaction.

Similar reasoning on an endothermic

delta H = +ve



Increase temp (ie bigger T2) increases ratio. Goes to the right.

[iffets12345]

It's not in the course.

[matt123]

there is no K in temperature, hence the system tries to make a move so that there is a k in temperature, like temperakure

LOL taiigggz

[kyzoo]

I didn't think it was too hard Mao at all, correct me if i'm wrong here but...

From memory its something like
 a ratio in terms of a ln

, T1 and K1 is a known K at a temp. T2 and K2 is unknown.

For exothermic reaction, delta H = -ve

Then notice that the main things of concern is



Then if T2 is bigger than T1 the ratio decreases, so we are going more to the left of a reaction.

Similar reasoning on an endothermic

delta H = +ve



Increase temp (ie bigger T2) increases ratio. Goes to the right.

0.O MASSIVE GENIUS =.=

[m@tty]

I didn't think it was too hard Mao at all, correct me if i'm wrong here but...

From memory its something like
 a ratio in terms of a ln

, T1 and K1 is a known K at a temp. T2 and K2 is unknown.

For exothermic reaction, delta H = -ve

Then notice that the main things of concern is



Then if T2 is bigger than T1 the ratio decreases, so we are going more to the left of a reaction.

Similar reasoning on an endothermic

delta H = +ve



Increase temp (ie bigger T2) increases ratio. Goes to the right.

0.O MASSIVE GENIUS =.=

*showoff

[iffets12345]

I didn't think it was too hard Mao at all, correct me if i'm wrong here but...

From memory its something like
 a ratio in terms of a ln

, T1 and K1 is a known K at a temp. T2 and K2 is unknown.

For exothermic reaction, delta H = -ve

Then notice that the main things of concern is



Then if T2 is bigger than T1 the ratio decreases, so we are going more to the left of a reaction.

Similar reasoning on an endothermic

delta H = +ve



Increase temp (ie bigger T2) increases ratio. Goes to the right.

0.O MASSIVE GENIUS =.=

*showoff

+1.

this is really annoying me. First the discussion about sequences and series and now this.

[Mao]

Spot on, martoman. Though I'd be pedantic and say , it doesn't make much difference in the qualitative sense. You've done it again. =]

Now can everyone appreciate why I say 'VCAA won't ask for this EVER'?