Chapter 20: Q. 16 (page 567)
is a typical walking speed. At what temperature would nitrogen molecules have an speed of ?
Short Answer
Temperature of nitrogen molecule is
Chapter 20: Q. 16 (page 567)
is a typical walking speed. At what temperature would nitrogen molecules have an speed of ?
Temperature of nitrogen molecule is
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Get started for freeA lottery machine uses blowing air to keep 2000 Ping-Pong balls bouncing around inside a box. The diameter of a Ping-Pong ball is . What is the mean free path between collisions? Give your answer in.
On earth, STP is based on the average atmospheric pressure at the surface and on a phase change of water that occurs at an easily produced temperature, being only slightly cooler than the average air temperature. The atmosphere of Venus is almost entirely carbon dioxide , the pressure at the surface is a staggering , and the average temperature is localid="1648638013375" . Venusian scientists, if they existed, would certainly use the surface pressure as part of their definition of STP. To complete the definition, they would seek a phase change that occurs near the average temperature. Conveniently, the melting point of the element tellurium is localid="1648638019185" . What are (a) the rms speed and (b) the mean free path of carbon dioxide molecules at Venusian STP based on this phase change in tellurium? The radius of a molecule islocalid="1648638027654" .
a. Find an expression for theof gas molecules in terms of,and the total mass of the gas .
b. A gas cylinder has a piston at one end that is moving outward at speed during an isobaric expansion of the gas. Find an expression for the rate at which is changing in terms of , the instantaneous value of , and the instantaneous value of the length of the cylinder.
c. A cylindrical sample chamber has a piston moving outward at during an isobaric expansion. The rms speed of the gas molecules is localid="1648640672000" at the instant the chamber length is localid="1648640676590" . At what rate is localid="1648640708264" changing?
At what pressure will the mean free path in room-temperature nitrogen be ?
A box contains of nitrogen at . What is the rate of collisions (collisions/s) on one wall of the box?
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