The root mean square velocity is...
1. the average distance a particle travels between collisions in a gas sample.
2. the square root of the average of the squares of the particle velocities.
3. the sum of the velocities of the gas particles in a sample divided by the number of particles in the sample.
4. the maximum temperature possible at a certain temperature.
Ans: The root mean square velocity is.....
2. the square root of the average of the squares of the particle velocities. (By definition)
The root mean square velocity is... 1. the average distance a particle travels between collisions in...
What happens to the root-mean-square velocity of a gas molecule if the temperature of the gas is decreased to the original Kelvin temperature? The velocity of the gas doubles. The velocity of the gas quadruples. The velocity of the gas is quartered. The velocity of the gas is halved.
5.82 The temperature in the stratosphere is -23 C Calculate the root-mean-square speeds of N O and O, molecules in this region. The average distance traveled by a molecule be- tween successive collisions is called mean free path. For a given amount of a gas, how does the mean free path of a gas depend on (a) density, (b) tem- perature at constant volume, (c) pressure at constant temperature, (d) volume at constant temperature. and (e) size of the atoms?...
Suppose that the root-mean-square velocity Us of water molecules (molecular mass is equal to 18.0 g/mol) in a flame is Feedback found to be 1170 m/s. What temperature does this represent? The root-mean-square velocity Urms of a molecule in a gas is related to 5.95 x109 temperature the mass of the molecule m and the temperature of the gas T. 3KT Urms The Boltzmann constant is k = 1.38 x 10-23 J/K.
4. Derive the expression for the root mean squared velocity of a gas from basic principles of mechanics. Explicitly list any assumptions that you make. Show that for an ideal gas PV = (1/3) n Mr v 2 ; n = number of moles, Mr = molecular mass and v = root mean square velocity
the root-mean-square speed(Urms)is the speed of gas particles possessing the average kinetic energy (KE) which is mathematically defined by the following two equations KE=NA(1/2mu2) KE=3/2RT Given that NA•m=M, where NA is Avogadro's number, m is mass and M is molar mass use algebra to derive the equation for Urms
What is another word for a sample variance? a. the average distance from one mean to another b. a mean square c. the standard deviation d. a sum of squares
A photon produced in the centre of the sun, travels about 1 cm between collisions and there are 10^8 collisions per sec. a) What is the average distance travelled in any direction between steps? b) What is the standard deviation about this value? c) The radius of the Sun is 7x10^8 m. How many steps must a photon take before having a 32% chance of being outside the Sun? d) How many years does the number of steps in “c”...
Calculate the root mean square velocity, vrms, of a molecule that has a molar mass, M, of 45.02 g/mol at a temperature of 40.56 °C using the equation below. For this calculation the gas constant, R, is expressed as 8.314 J/(mol*K) and the molar mass, M, needs to be converted to kg/mol. vrms=3RTM
3.32 What is the square root of the sample size rounded down to the nearest whole number? What is the square root of the sample size rounded up to the nearest whole number? What is the sample variance (unrounded)? What is the sample standard deviation (unrounded)? What is the sample variance (to 2 decimals)? What is the sample standard deviation (to 2 decimals)? How many observations are less than 75? Is the mean less than 75 (TRUE or FALSE)? Check...
The molecules of a certain gas sample at 375 K have a root-mean-square (rms) speed of 271 m/s. Calculate the most probable speed and the mass of a molecule. Most probable speed: Number 0 m/s Molecular mass: Number