Air,which Is Primarily Nitrogen and Oxygen,does Contain a Very Small $\circ$

question 92

Multiple Choice

Air,which is primarily nitrogen and oxygen,does contain a very small fraction of helium.What is the root-mean-square speed of helium at 25 ^$\circ$ C,where its average kinetic energy is about 3.72 kJ/mol? How many times faster or slower does it travel than N₂? (1 J = 1 kg .m²/s²; 1 mol = 6.02 $\times$ 10²³)

• A)1360 m/s; 2.65 times faster
• B)515 m/s; 0.378 times slower
• C)1860 km/s; 7.00 times faster
• D)1360 km/s; 0.143 times slower
• E)Both gases have the same u_rms at 25 \(\circ\) C.

Comprehend the key elements of prospect theory, especially regarding gains, losses, and risk preferences.

Learn how external environments influence consumer behavior and decision-making.

Gain knowledge on how pre-existing product knowledge influences consumer choices.

Understand the comprehensive process of making a rational purchase decision.

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Definitions:

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