Answer: Confusion
Explanation: He is confused and doesn't want to admit he has a problem.
<span>This problem is solved by the law of effusion, which states that the rate of effusion is ~ 1/sqrt(molecular weight). Calculate the molecular weights of the different gases:
HBr = 80.91 g/mol
NO2 = 46.0055 g/mol
C2H6 = 30.07 g/mol
Thus, the approximate relative rates are HBr ~ 0.112, NO2 = 0.1474 and C2H6 = 0.1824.
Answer: C2H6 effuses fastest.</span>
<span>The question is: Is it true that Professional assessments are the only reliable method for determining an individual's levels of health-related fitness. This question does not have a clear answer, as while professional assessments would be optimal -professionals usually have the required education and experience, a lot of information can also be obtained by self tests, for example: can I run for 3 minutes without being tired? So, some non-professional assessments are also reliable.</span><span />
