Chemistry, 10.09.2019 20:30, Absynthe3986
The rate at which a substance passes through a semipermeable membrane is determined by the diffusivity d cm2/s of the gas. d varies with the membrane temperature t k according to the arrhenius equation: d d0 exp e/rt where d0 the preexponential f actor e the activation energy for diffusion r 1: 987 cal/ mol k diffusivities of so2 in a fluorosilicone rubber tube are measured at several temperatures, with the following results: t k d cm2/s 106 347.0 1.34 so that d 1: 34 106 cm2/s 374.2 2.50 396.2 4.55 420.7 8.52 447.7 14.07 471.2 19.99 (a) what are the units of d0 and e? (b) how should the data be plotted to obtain a straight line on rectangular coordinates? (c) plot the data in the manner indicated in part (b), and determine d0 and e from the resulting line. (d) repeat part (c) using a spreadsheet program.
Answers: 3
Chemistry, 23.06.2019 01:30, sleimanabir
Witch two conditions can limit the usefulness of the kinetic molecular theory in describing gas behavior?
Answers: 2
Chemistry, 23.06.2019 08:40, Riplilpeep
Which statement is true according to the kinetic theory? a. molecules of different gases with the same mass and temperature always have the same average density. b. molecules of different gases with the same mass and temperature always have the same average volume. c. molecules of different gases with the same mass and temperature always have the same pressure. d. molecules of different gases with the same mass and temperature always have the same molecular mass. e. molecules of different gases with the same mass and temperature always have the same average kinetic energy.
Answers: 1
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