Solution: The sun is surrounded by a white circle of gaseous
Chapter 7, Problem 7.132(choose chapter or problem)
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 Fe141 ions has been recorded and analyzed. Knowing that it takes 3.5 3 104 kJ/mol to convert Fe131 to Fe141, estimate the temperature of the suns corona. (Hint: The average kinetic energy of one mole of a gas is 3 2RT .)
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