Stars are surrounded by a white circle of gaseous material called the corona, which can be studied. 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 an unknown element ion, here labeled as x^15+ , has been recorded and analyzed. Given that it takes 4.4 *10^4 kJ/mol to convert x^14 to x^15+ , estimate the temperature of the star's corona. Be sure your answer has the correct number of significant digits. (Hint: The average kinetic energy of one mole of a gas is 3/2 RT .)