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the rate at which a substance through a semipermeable membrance is determined by the diffusivity D(cm^2/s)of the gas . D varies the membrance temperature T(K) according to the arrhenius equation D=D0exp(-E/RT) where D0 = the preexponential factor, E=the activiation energy for the diffusion, R=1.987cal/(mol.k) diffusitivities of co2 in a fluorosilicons rubber tube are meauredat several temperature , with the following results: T(K) 347.0 , 374.2, 396.2, 420.7, 447.7, 471.2 D(cm^2/s*10) 1.34, 2.50, 4.55, 8.52, ,14.07,19.99 ( so that D =1.34*10^(-6)cm^2/s) (a) what the are the unites of D0 and E? (b) how should the dara be plotted to obtain line on the rectangular coordinate ? (c) plot thedata in the manner indicated in part (b), and determine D0and E from the resulting line
Find the volume and the intermolecular force present in ammonia at STP in the following reaction and What is the intermolecular force is present in NH3(g).
For a solution having 1 x 10-3 equivalents/liter total alkalinity (contributions from HCO3-, CO32- and OH-) at [H+]=4.69 e-11, what is the percentage contribution to the alkalinity from CO32-
How much heat (in kJ) is required to warm 16.0g of ice, initially at -11.0 C, to steam at 112.0 C? The heat capacity of ice is 2.09 J/g*C and that of steam is 2.01 J/g*C.
How many grams of CaH2 are needed to generate 19.0 L of H2 gas if the pressure of H2 is 780. torr at 15 C?
Application of ideal gas law - How high can you raise the temperature of the gas without bursting the vessel?
Discuss in detail, one way in which atomic nuclear decay takes place. What is the significance of atomic nuclear decay? Analyze the societal implications of using this process.
25.0 ml of 0.212 M NaOH ia neutralized by 13.6 ml of an HCl solution. The molarity of the NAOH solution is?
If iron is oxidized to Fe2+ by a copper(II) sulfate solution, and 0.538 grams of iron and 13.0 mL of 0.40M copper(II) sulfate react to form as much product as possible.
If the initial concentration of AB is 0.260 M, and the reaction mixture initially contains no products, what are the concentrations of A and B after 80 s?
If 156 mL of wet H2 is collected over water at 24C and a barometric pressure of 736 torr, how many grams of Zn have been consumed?
iron(111)oxcide is formed when iron cobines with oxygen in the air. how many grams if Fe2O3 are formed when 16.7 Fe reacts completly with oxygen?
How does one predict the regiochemistry of the products of aromatic reactions like nitration? What factors are responsible for the product ratios seen in such reactions?
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