Rates of reaction + equilibrium

Question 1

when a reaction is at equilibrium what does it mean?

Answer 1

the forward reaction is occurring at the same rate as the reverse reaction.
the concentrations of the reactants and products are the same

Question 2

what happens if you move the equilibrium to the left?

Answer 2

make more reactant

Question 3

what happens if you move the equilibrium to the right?

Answer 3

make more product.

Question 4

how do reversible reactions behave?

Answer 4

they do the opposite to what they’ve been asked

e.g. - increase temp the reaction will try to decrease it.

Question 5

how to work out what happens to the yield when pressure is changed

Answer 5

add up moles on both sides
(if q increases it will move to high pressure side if decreases will move to low pressure side)
state effect on yield. LOOK AT BOOK AND PRACITCE QUESTIONS

Question 6

what is the effect on yield when temperature is altered?

Answer 6

some reactions are exothermic, some are endothermic. If a reaction is exothermic in one direction it will be endothermic in the other.

Question 7

what will happen to the rate if temp is increased?

Answer 7

increase the rate.