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a. A solid in contact with a gas at 12 kPa and 25°C adsorbs 2.5 mg of the gas and obeys the Langmuir isotherm. The enthalpy change when 1.00 mmol of the adsorbed gas is desorbed is +10.2 J. What is the equilibrium pressure for the adsorption of 2.5 mg of gas at 40°C?
b. A solid in contact with a gas at 8.86 kPa and 25°C adsorbs 4.67 mg of the gas and obeys the Langmuir isotherm. The enthalpy change when 1.00 mmol of the adsorbed gas is desorbed is +12.2 J. What is the equilibrium pressure for the adsorption of the same mass of gas at 45°C?
What is the molecular formula of sulfur under these conditions. Type your answer using the format CO2 for CO2.
What is the simplest formula for Chalcocite if a sample of this ore contains 8.274 g copper and 2.088 g sulfur?
Find out the normal boiling point (in Celsius) of pure acetic acid giving that the liquid has a vapor pressure of 13.9 torr at 25degree Celsius and its heat of vaporization (Δhvap) is 41.7kj/mol.
Chlorine has two stable isotopes Cl-35 (34.968853) as well as Cl-37 (36.965903). If the isotopic abundance of Cl-35 is 75.77% Explain what is the average atomic weight of Cl given on the period table
A problem occurred and the mixture was acidified to a pH of 2 with HCl and there was no precipitate. Explain what went wrong and write an equation for the reaction that caused the problem. How the product be recovered
a buffer that contains 0.52 m base b and 0.33 m of its conjugate acid bh has a ph of 8.78. what is the ph after 0.0032
Draw the structure of the product that results from entire reduction of the following compounds by sodium borohydride
the vapor pressure of a liquid at 25c is 200 torr. what will happen when the barometric pressure pbar is lowered to 190
Question- A certain elemental metal crystallizes in a body-centered cubic unit cell. If the length of an edge of the unit cell is 0.430 nm, what is the closest value to the atomic radius (in nm) of this metal atom
Gallium crystallizes in a primitive cubic unit cell. The length of an edge of this cube is 362 pm. What is the radius of a gallium atom
Describe how you would prepare 150.0 mL of a pH = 5.00 buffer solution from a solution of 0.200-M aniline, C6H5NH2, a weak base
All of the following are characteristics of fusion EXCEPT A) Two small nuclei combine to form a larger nucleus. B) Large amounts of toxic nuclear waste are produced during a fusion reaction.
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