5. What do chemists mean by equilibrium?
The exact balancing of two processes, one of which is the opposite of the other. Rate of forward reaction = Rate of the Reverse Reaction
6. Why is equilibrium considered to be a dynamic state?
The concentration of the reactants and products do not change, but the formation of products and reactants is constant and ongoing.
7. What happens to the rates of forward and reverse reactions as a chemical system goes from start to
equilibrium, starting with only reactants (no products).
At first, the rate of the forward reaction decreases and the rate of the reverse reaction increase. Equilibrium is reached when the forward rate and the reverse rate become the same.
8. Observe the following endothermic reaction: 2 NOCl(g) « 2 NO(g) + Cl2(g)
What shift in equilibrium will occur when each of the following occurs?
a. Cl2 gas is added (the concentration is increased) – left (shift away)
b. The volume is increased – right (larger number of gas moles)
c. NO(g) is removed – right (shift towards)
d. The temperature is decreased – left (endothermic, heat is on left side, shift towards heat)
e. The pressure is increased – left – (shift toward smaller number of gas moles)
This study guide is very helpful Mrs. Lundie. So does the pressure follow the smaller number of moles and the volume follow the larger number of moles?
ReplyDelete- This is Britny Martinez
I know this is too late, but it depends how its shifts. Increasing pressure shifts to the smaller number of moles and increasing volume shifts to the larger number of moles.
DeleteThanks for adding the reasons why its left, right, away, or toward. I was confused about that! :)
ReplyDeleteJensyn Cornwall
You're welcome! Thanks for taking the time to look up the problem.
ReplyDelete