You are riding on a Ferris wheel while standing on a scale. The
scale normally reads 1500 lbs. (Did I mention you're a robot made
of incredibly heavy metal?) While you are riding, you notice your
weight on the scale changing. At the TOP of the Ferris wheel, you
weigh only 1430 lbs. The Ferris wheel has a diameter of 230 m. How
much time does it take the Ferris wheel to make one full turn?
(Give answer in seconds).
A vertical scale on a spring balance reads from 0 to 200 N. The scale has a length of 10.0 cm from the 0 to 200 N reading. A fish hanging from the bottom of the spring oscillates vertically at a frequency of 2.05 Hz.Ignoring the mass of the spring, what is the mass m of the fish?
What is a production function? What is meant by constant returns
to scale? What is meant by diminishing returns? How are factor
prices determined in a competitive economy? How does a firm decide
how many workers to hire and how much capital to rent? What factors
would alter factor rewards and how? What is Euler’s theorem?
Calcualte the equilibrium constant for the reaction using
tabulated data and write the equilibrium constant for this reaction
in terms of partial pressure
2H2(g)+O2(g) <--> 2H2O(g) at 298k, 1 bar
Suggest how the thermodynamic equilibrium constant and the
equilibrium constant expressed in terms of partial pressures may
respond differently to changes in temperature and pressure.
Use cell potential to calculate an equilibrium constant.
Calculate the cell potential and the equilibrium constant for
the following reaction at 298 K:
Cu2+(aq) +
Hg(l) =
Cu(s) +
Hg2+(aq)
Hint: Carry at least 5 significant figures during intermediate
calculations to avoid round off error when taking the
antilogarithm.
Equilibrium constant: -------
A flask of water rests on a scale that reads 100 NN. Then, a
small block of unknown material is held completely submerged in the
water. The block does not touch any part of the flask, and the
person holding the block will not tell you whether the block is
being pulled up (keeping it from falling further) or pushed down
(keeping it from bobbing back up). Assume that no water spills out
of the flask. (Figure 1)
Rank these...
1. Water is in the big beaker in the figure on the left. Scale 1
reads 58 newtons, scale 2 reads 908 newtons, and scale 3 reads 0
newtons. The hanging block has a density of 10
What is the equilibrium constant
for the reaction of AgCl(s) with concentrated HCN? The Ksp of AgCl
is 1.8 × 10−10 and the Kf of Ag(CN)2− is 1.0 × 1021.
The Equilibrium-Constant Expression
Learning Goal:
To understand the form and meaning of the equilibrium-constant
expression.
Chemical reactions are usually not one-way trips from reactant
to product. In fact, most chemical reactions are reversible to at
least some extent. Products formed by the forward reaction may
react with each other to regenerate the reactants. When reactants
are mixed, they will begin to react at a forward reaction rate
particular to that chemical reaction. As reactants are depleted and
products are formed,...