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The reaction A2(g) + B(g )? A(g) + AB(g) has an equilibrium constant of Kp = 2 . The accompanying diagram shows a mixture containing A atoms (red), A2 molecules, and AB molecules (red and blue). How many B atoms should be added to the diagram to illustrate an equilibrium mixture?
A first order reaction has an Arrhenius constant for the reaction is 3.2 x 1010 sec -1, and an activation energy of 65.1 kJ. At what temperature (in Celsius) is the rate constant equal to 0.479 sec-1
choose the situation below that would result in an exothermic hsolution. question options when h soetel h hyd when h
a design secures to parts with a line of hex-head bolts whose heads have a 12 distance across the flats i.e. take a
How many grams of formic acid, HCOOH, must be added to 0.300 L of 0.190 M sodium formate, HCOONa, to yield a buffer solution with a pH of 4.00? Assume no volume change. Ka of HCOOH = 5.0 10-4.
Find the change in entropy (S) for the system, surroundings and universe for the conversion of 1 mol of ice at 0 degrees C and 1.00 atm to 1.0 mol of steam (vapor) at 100 degrees C and 0.50 bar. Useful data might be
Which of the following solutions has the highest osmotic pressure? A. 1.0 M K3PO4 B. 2.0 M LiBr C. 4.0 M C6H12)6 D. all have the same osmotic pressure
What type of electromagnetic spectrum is this radiation? microwave ultraviolet infrared x-ray (b) If the detector is capturing 8. 107 photons per second at this wavelength, what is the total energy of the photons detected in one hour? 8.20e12 J/hr
The gibbs free energy of water dissociation at 2100K is larger than that of carbon dioxide dissociation by at least 35 kJ/mol.
For the same atoms at the lattice points, which lattice exhibits the lowest density? (please explain your reasoning) (A) body-centered cubic (B) face-centered cubic
How many atoms of neon occupy a volume of 14.3 L at STP?
vapor pressure of pure acetone propanone is 266 torr. when a non-volatile solute is added the vapor pressure of acetone
The expressions for the P-, Q-, and R-branches, assume that the moment of inertia of the molecule is the same in the excited vibrational states as in the ground state. Derive expressions for the positions of the lines without making these assumpti..
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