Which best describes the transition from gas to liquid? (2 points) Select one: a. Energy must be removed because particles in li
2 answers:
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This question involves the concepts of average kinetic energy and velocity.
Complete question: Calculate the root mean square velocity of the nitrogen molecules, at 25°C, in meters per second (m/s). Do not include the unit of measure in your answer.
The root mean square velocity of the nitrogen molecule at 25°C is "727.66 m/s".
The average kinetic energy of gas molecules is given by the following formula:
Also,
Comparing both equations we get:
where,
v = root men square velocity = ?
K = Boltzman's constant = 1.38 x 10⁻²³ J/k
T = absolute temperature = 25°C + 273 = 298 k
m = mass of nitrogen molecule = 2.33 x 10⁻²⁶ kg
Therefore,
<u>v = 727.66 m/s</u>
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Learn more about the root mean square velocity here: