probableparticlespeed (vp) differfrom the averageparticlespeed (vavg)? Probableparticlespeed is guessing of the speed and averageparticlespeed is gathering information over a period of time.
4. Does the trend of the change in shape of the graph as temperature increases differ when a...
particle at a givenspeed increase and the speed decrease
• Xenon gas the number of particles at a givenspeed increase and speed m/s decrease
3. At a giventemperature, whydoes the mostprobableparticlespeed (vp) differfrom the averageparticlespeed (vavg)?
increase the speed frequency also increases
At a giventemperature, whydoes the mostprobableparticlespeed (VP) differfrom the averageparticlespeed (vavg)? Because the distribution of probabilities is not symmetrical. The mostprobableparticlespeed refers to the maximum of the curve, and that...
- ½ particles, and so have net spins of 1 , 3 or 5 , and they obey the exclusion 2 2 2 principle. 7. In what way does the electron structure of an alkali metal atom differfrom that of a halogen atom? From that of an inert gas atom? ¡¼sol¡½ An alkali metal atom has one electron outside closed inner shells: A...
origin located on a nearby asteroid, and 5 seconds later is observed at location 325, 25, −550 m. (a) What is the average velocity of the spacecraft? (b) What is the averagespeed of the spacecraft? (c) What is the unit vector in the direction of the spacecraft’s velocity?
5m 4 3 2 1 0 0 ri rf vavg...
The measure of the averagespeed of the molecules of a substance
When the molecules of a substance absorb energy, they move faster
How doestemperature affect air density?
Warm air is less dense (rises)
Cold air is more dense (sinks)
What is sensible heat?
Heat that can be...
move faster, on the average, than do heavier molecules. For example, at a giventemperature, hydrogen molecules, whose molar mass is 2 10 3 kg/mol, have an averagespeed four times that of oxygen molecules, whose molar mass is 32 10 3 kg/mol. Table 21.1 lists the rms speeds for various molecules at...
distribution provides a direct explanation of: A. thermal expansion B. the ideal gas law C. heat D. evaporation E. boiling ans: D 57. For a gas at thermal equilibrium the averagespeed v, the mostprobablespeedvp , and the root-mean-square speed vrms are in the order: A. vp < vrms < v B. vrms < vp < v...
till you see ACCUMULATED at the bottom of this list. This averages all data from the time you hit the key onward. The animation is still real time. Wait till at least 1.2e-09 secs before answering: How valid a prediction does the Maxwell Speed Distribution seem to be?
Low Temperature Experiments...
satellite for long distance TV transmission. Why? (c) Optical and radio telescopes are built on the ground but X-ray astronomy is possible only from satellites orbiting the earth. Why? (d) If the earth did not have an atmosphere, would its average surface temperature be higher or lower than what it is now...
dashed line labeled “particle horizon” crosses the 13.7 billion year “now” line at about 46 billion light years. It is to be understood that even though a signal from the most distant source currently reaching us, called the particle horizon, has been traveling at the speed of light...
2.5 s) so averagespeed is
b) Distance travelled is given by the area under the graph
= (5 s
20 m) + (0.5
= 137.5 m
Averagespeed is found by dividing the total distance a body has travelled by the time it has
taken; the speed may vary from moment...
of these (NOT average!)
_When are hurricanes most likely? Why?
* Reason being ocean temps are warm from summer
_What ingredients are required for hurricane formation? Why are these ingredients necessary?
* Sea-surface temps (SSTs) greater than 26.5 C (80 F...
determined by the temperature of the medium and can be determined by Equation (2-13) .
2 k T m
where: vp k T m Example: Calculate the mostprobable velocities for neutrons in thermal equilibrium with their surroundings at the following temperatures. a) 20 C, b) 260 C. Solution: a...
v 0 K . The distribution of speed is
outlined as follows.
(a) The mostprobablespeedvP =
(b) The averagespeed vav =
(c) The root-mean-square speed vrms =
Chapter 14 Thermodynamics...
force does act on it is given by Newton’s second law. This states that the body will accelerate, or change its speed, at a rate that is proportional to the force. (For example, the acceleration is twice as great if the force is twice as great.) The acceleration is also smaller the greater the mass...
successfully, safely, and economically. The most important functions are: 1. 2. 3. 4. 5. 6. 7. 8. 9. Remove drilled cuttings from under the bit Carry those cuttings out of the hole Suspend cuttings in the fluid when circulation is stopped Release cuttings when processed by surface equipment Allow...
Given an event P, one can divide the other events in the universe into three classes. Those events that can be reached from the event P by a particle or wave traveling at or below the speed of light are said to be in the future of P. They will lie within or on the expanding sphere of...
109 speed v2 = 1767 m s-1 Hence change in orbital speed, = v2 - v4 =1767 -1250 = 517 = 520 m s-1 (2 sf)
Fromgiven graph, at V = 4.50 V, power P is maximum and P = 5.62 W current I =
P 5.62 = = 1.25 A (3 sf) V 4.50
Resistance of R =
V 4.50 = = 3.60Ω (3 sf...
2. the increase in internal energy is due to an increase in the PE, NOT KE of molecules
3. the system here is NOT to be considered as an ideal gas system
Similarly, you need to explain why, when a liq is boiling, thermal energy is being supplied, and yet, the temp of the liq does not change...