In the Uranium Isotope Separation for and

question 30

Multiple Choice

In the uranium isotope separation for and , the gas molecules used are , uranium hexafluoride. The key to the separation is that in thermal equilibrium the average speed of the molecule is different from that of the molecule. The fluorine atoms involved are all . Which of the hexafluoride molecules has the higher average speed and what is the ratio of the faster speed to the slower speed?

• A) The is the faster one. The ratio of its speed to that of is 1.009.
• B) The is the faster one. The ratio of its speed to that of is 1.004.
• C) The is the faster one. The ratio of its speed to that of is 1.009.
• D) The is the faster one. The ratio of its speed to that of is 1.004.

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Definitions:

Avant-Garde Ballet

A form of ballet that pushes the boundaries of traditional ballet aesthetics and narratives, often incorporating innovative choreography, music, and stage design.

Sergey Diaghilev

A prominent Russian art critic, patron, ballet impresario, and founder of the Ballets Russes, who significantly influenced the ballet and artistic scene in the early 20th century.

Émile Durkheim

A French sociologist, significant for his contributions to the establishment of sociology as a recognized academic discipline and for his theories on social cohesion and anomie.

Gustave Le Bon

A French social psychologist best known for his work on crowd psychology, arguing that crowds transform individual psychology, leading to uncharacteristic behaviors.