Pick the example with the highest entropy from each of the following sets: a

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Pick the example with the highest entropy from each of the following sets:
a. Solid ice, liquid water, or steam.
b. Leaves on a tree, fallen leaves scattered on the ground, or fallen leaves
raked and put into a basket.
c. Ingredients for a paella arranged in small bowls, a cooked paella right out
of the oven, paella on a dozen different plates scooped up by a hungry crowd.
 

 

 

2. Consider the following hypothetical reaction: A + B -> C Calculate the
average rate of reaction based upon the following information:
a. At the start of the reaction the concentration of C is 0.170 M. After 9.0
minutes the concentration of C is 0.830 M
b. Pure A and B are mixed together at the same concentration of 0.730 M.
After 15.0 minutes the concentration of A is found to be 0.050 M.
 

 

 

3. A reaction is started by mixing reactants. As time passes, the rate decreases.
Explain IN JUST A FEW SENTENCES this behaviour which is characteristic of
most reactions:
 

 

4. Write the equilibrium constant for the following reactions:
a. 2CO <-----> O2 + 2CO2
b. 2NOCl <----> 2NO + Cl2
c. 3O2 <-----> 2O3

 

5. A sample of gaseous BrCl is allowed to decompose in a closed container:
2 BrCl <--> Br2 + Cl2
When the reaction reached equilibrium, the following concentrations are
measured: [BrCl] = 0.62 M, [Br2] = 0.24 M, [Cl2] = 0.24 M. Determine a) the
equilibrium constant for this reaction, and b) based on the equilibrium
constant whether the reaction favors the reactants, products or neither.