Sunday
August 2, 2015

Homework Help: Check my answers? (Chemistry)

Posted by Rebekah on Tuesday, April 19, 2011 at 5:41pm.

I only get one chance for each of these questions so I was wondering if someone could check my answers, thanks!

1. Consider the following reaction at equilibrium.
2 BrNO(g) ---> 2 NO(g) + Br2(g)
Predict the effect of the following changes to the reaction mixture.
(a) adding Br2

It shifts to the left. (My answer)
It shifts to the right.
There is no effect

(b) removing Br2

It shifts to the left.
It shifts to the right.(my answer)
There is no effect.

(c) removing NO


It shifts to the left.
It shifts to the right.(my answer)
There is no effect.

2. Consider the following reaction at equilibrium.
2 KClO3(s) --> 2 KCl(s) + 3 O2(g)
Predict the effect of the following changes to the reaction mixture.

a) adding O2

It shifts to the left. (my answer)
It shifts to the right.
There is no effect.

(b) removing KCl

It shifts to the left.
It shifts to the right. (my answer)
There is no effect.

(c) removing O2

It shifts to the left.
It shifts to the right.(my answer)
There is no effect.

(d) removing KClO3


It shifts to the left. (my answer)
It shifts to the right.
There is no effect.

3. The following reaction is endothermic.
I2(g) --> 2 I(g)
Predict the effect of the following changes to this reaction.

(a) increasing the reaction temperature

It shifts to the left.
It shifts to the right.(my answer)
There is no effect.

(b) decreasing the reaction temperature

It shifts to the left. (my answer)
It shifts to the right.
There is no effect.

The following reaction is endothermic.
C2H4(g) + I2(g) ---> C2H4I2(g)
Predict the effect of the following changes in the reaction temperature.

(a) increasing the reaction temperature

It shifts to the left.
It shifts to the right. (my answer)
There is no effect.

(b) decreasing the reaction temperature


It shifts to the left.(my answer)
It shifts to the right.
There is no effect.


Thanks:)

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