Question

Please help!!!
In the equilibrium system below, which of the following changes would cause the equilibrium to position to shift to the right?

2 SO3 (g) ----> 2 SO2 (g) + O2 (g)(delta)H=197/KJ/mol
<----
Decrease the temperature

Increase the volume

Add more O2 gas

Add a Catalyst

Answer 1

use the same kind of thinking as in the previous problems

Answer 2

temperature and total volume can also be used just like adding a reactant or product, or taking something away to stress the reaction and cause it to shift to one side or another

Answer 3

can you take me through this one please?

Answer 4

ok so can we say that A and B are involved in this problem?

Answer 5

yes

Answer 6

because you're told the \(\Delta H\), and because it's positive, that means heat energy is added like a reactant, so we can use that info to predict what adding MORE heat energy will force the reaction to do

Answer 7

ok i see

Answer 8

would decreasing the temp make it shift to the right?

Answer 9

if you decrease the temp, that's like REMOVING heat energy. Since heat energy belongs on the reactant side, will that force the reaction to the right?

Answer 10

oh ok i see now, no that wouldn't

Answer 11

so increasing the volume should do it

Answer 12

yes. because there are gasses, increasing the volume of the container will give the molecules more room to spread out, making the reaction shift towards the side that has more gas molecules.

there are 2 moles of gas reactants, and 3 moles of gas products. increasing the volume will shift the reaction to the side where there are more moles of gas.

Answer 13

could you help me with this another one please?