(11%) Problem 4: There are two important isotopes of uranium: U and U. These isotopes have different atomic masses and react differently. Only U is very useful in nuclear reactors. One of the techniques for separating them (gas diffusion) is based on the different rms speeds of uranium hexafluoride gas, UF6. 50% Part (a) The molecular masses for UF with 2SU and UF with 238U are 349.0 g/mol and 352.0 g/mol, respectively. What is the ratio of rms speeds? 1235 = 1.0043 1238 235 = 1.004 Correct! V238 *50% Part (b) At what temperature, in kelvins, would their root mean square speeds differ by 1.00 m/s? T = 2.10477 * 10(-22) Grade Summary K Deductions 0% Potential 100% sin() cos() tan() 7 8 9 HOME Submissions cotan() asin() acos() 4 5 6 Attempts remaining: 996 atan() acotan() sinh() * 2 3 (0% per attempt) cosh( tanh() cotanh() + 0 END detailed view o Degrees . Radians VO BACKSPA DEL CLEAR 1 0% 0% WN Submit Hint Feedback I give up! 0%