How Fast Must a Hydrogen Atom Be Traveling for Its

question 12

Multiple Choice

How fast must a hydrogen atom be traveling for its kinetic energy to be just enough to excite the ground-state atom to its first excited state in a collision? (1 eV = 1.60 × 10^-19 J,

• A) 44.2 km/s
• B) 21.7 km/s
• C) 66.5 km/s
• D) 113 km/s
• E) 51.0 km/s

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Definitions:

Exteroceptors

Sensory receptors that receive stimuli from the external environment, involved in senses such as sight, hearing, taste, smell, and touch.

Olfactory Cortex

A region of the brain involved in the processing of smell information received from the olfactory receptors.

Sensory Receptors

Specialized cells or nerve endings that respond to changes in the environment and send signals to the central nervous system.

Nasal Cavity

The large air-filled space behind the nose that filters, warms, and humidifies inhaled air.