The sun is surrounded by a white circle of gaseous material called the corona, which becomes visible during a total eclipse of the sun. The temperature of the corona is in the millions of degrees Celsius, which is high enough to break up molecules and remove some or all of the electrons from atoms. One way astronomers have been able to estimate the temperature of the corona is by studying the emission lines of ions of certain elements. For example, the emission spectrum of Fe 14+ ions has been recorded and analyzed. Knowing that it takes 3.5 × 10 4 kJ/mol to convert Fe 13+ to Fe 14+ , estimate the temperature of the sun’s corona. ( Hint: The average kinetic energy of one mole of a gas is 3 2 R T .)
The sun is surrounded by a white circle of gaseous material called the corona, which becomes visible during a total eclipse of the sun. The temperature of the corona is in the millions of degrees Celsius, which is high enough to break up molecules and remove some or all of the electrons from atoms. One way astronomers have been able to estimate the temperature of the corona is by studying the emission lines of ions of certain elements. For example, the emission spectrum of Fe 14+ ions has been recorded and analyzed. Knowing that it takes 3.5 × 10 4 kJ/mol to convert Fe 13+ to Fe 14+ , estimate the temperature of the sun’s corona. ( Hint: The average kinetic energy of one mole of a gas is 3 2 R T .)
The sun is surrounded by a white circle of gaseous material called the corona, which becomes visible during a total eclipse of the sun. The temperature of the corona is in the millions of degrees Celsius, which is high enough to break up molecules and remove some or all of the electrons from atoms. One way astronomers have been able to estimate the temperature of the corona is by studying the emission lines of ions of certain elements. For example, the emission spectrum of Fe14+ ions has been recorded and analyzed. Knowing that it takes 3.5 × 104 kJ/mol to convert Fe13+ to Fe14+, estimate the temperature of the sun’s corona. (Hint: The average kinetic energy of one mole of a gas is
3
2
R
T
.)
28. For each of the following species, add charges wherever required to give
a complete, correct Lewis structure. All bonds and nonbonded valence
electrons are shown.
a.
b.
H
H
H
H
H
:0-C-H
H
H
H-C-H
C.
H
H
d. H-N-0:
e.
H
H-O
H-O
H
B=0
f. H—Ö—Ñ—Ö—H
Norton Private B
At 0oC and 1 atm, the viscosity of hydrogen (gas) is 8.55x10-5 P. Calculate the viscosity of a gas, if possible, consisting of deuterium. Assume that the molecular sizes are equal.
Indicate the correct option for the velocity distribution function of gas molecules:a) its velocity cannot be measured in any other way due to the small size of the gas moleculesb) it is only used to describe the velocity of particles if their density is very high.c) it describes the probability that a gas particle has a velocity in a given interval of velocitiesd) it describes other magnitudes, such as pressure, energy, etc., but not the velocity of the molecules
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Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell