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A cylinder contains one liter of air at room temperature (300 K) and atmospheric pressure (105 N/m2). At one end of the cylinder is a massless piston, whose surface area is 0.01 m2 . Suppose that you push the piston in very suddenly, exerting a force of 2000 N. The piston moves only one millimeter, before it is stopped by an immovable barrier of some sort.
(a) How much work have you done on this system?
(b) How much heat has been added to the gas?
(c ) Assuming that all the energy added goes into the gas (not the piston or cylinder walls), by how much does the internal energy of the gas increase?
(d) Use the thermodynamic identity to calculate the change in the entropy of the gas (once it has again reached equilibrium).
A different sample of carbon dioxide also contains 27% carbon and 73% oxygen. The percentages are the same for all samples analyzed. Explain these observations with respect to atomic theory.
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Buffering Action of Proteins, We did this experiment in class but I want to see if the results seem reasonable and, if so, why they were not more varied.
If 5.00 mL of HCl require 4.78 mL of 0.9581 M NaOH to just consume the HCl, what is the concentration of the HCl
Given Mo Energy level diagram for diatomic molecules, which of the following molecular molecular ions has a bond order of 3. Why
59.0 ml of a solution of 1.70 m is diluted to a volume of 288 ml. determine the final concentration if a 144-ml portion
Identify the chiral centers with asterisks and label each center as R or S. 5. How might you use 13C NMR spectroscopy to determine if the brominated product is contaminated with some unreacted starting material (during the bromination of trans-cin..
The pressure of a gas is measured in a closed manometer. The gas supports mercury at a height of 365 mm. What is the pressure in kPa?
How many structural isomers (ignoring any cis/trans or stereroisomers) are there given the following chemical formula, C4H10O
potassium chromate k2cro4 is manufactured in a process in which 1.25 kgs of a solution that is 33.3wt k2cro4 in the
Derive ( in Cartesian coordinates) the quantum mechanical operators for the three components of angular momentum starting from the classical definition of angular momentum, l = r × p. Show that any two of the components do not mutually commute, an..
Question- Iodine-131 is a radioactive isotope. After 5.00 days, 65.0% of the sample of 131I remains. What is the half-life of 131I
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