Explain mean free path is the average distance a molecule

Reference no: EM13560899

The mean free path is the average distance a molecule will travel before colliding with another molecule. From kinetic gas theory (which is explained in any pchem text and probably some general chem texts as well if you're curious), we can derive the following equation for mean free path, λ:

λ = kT/√2σp

where k is the Boltzmann constant, T is temperature, p is pressure, and σ is the collisional cross section of the gas molecule in question. A good approximation of the collisional cross section is the actual diameter of a sphere representing the molecule in question. (In other words, you can estimate this with some idea of molecular radius and the formula for area of a circle.)

So use those powers of estimation to determine the mean free path for a Na+ ion coming out of the ICP (atmospheric pressure) and near the entrance to the MS of an ICP-MS (assume 10-4 Torr). Use standard temperature: 298K.

Reference no: EM13560899

Questions Cloud

Review the case study - bega : Review the case study - Bega. Based on your research into the Bega company, profile the company's position using Situational Analysis tools and approaches.

Calculate the angular momentum of the rod about that axis : A uniform rod rotates in a horizontal planeabout a vertical axis through one end. Calculate the angular momentum of the rod about that axis

Fundamentals of physics if the battery remained connected : How would you solve problem 52 from chapter 25 from the book fundamentals of physics if the battery remained connected.

Estimate what is the average power of the flywheel : The angular momentum of a flywheel having arotational inertia of 0.240 kg m2 aboutits axis decreases from 3.70 to 1.30 kg m2/s in2.10 s. What is the average power of the flywheel

Explain mean free path is the average distance a molecule : The mean free path is the average distance a molecule will travel before colliding with another molecule. From kinetic gas theory (which is explained in any pchem text and probably some general chem texts as well if you're curious),

What is the transmission power : An airplane flying at a distance of 8.6 km from a radio transmitterreceives a signal of intensity 12 μW/m2. What isthe amplitude of the (a) electricand (b)magnetic component of the signal atthe airplane? (c) If the transmitterradiates uniformly over ..

Find at what angle with the ground is the shell projected : A 1100 kg cannon, which fires a 50 kg shell witha speed of 506 m/s relative to the muzzle, is set at anelevation angle of 39° above the horizontal. At what angle with the ground is the shell projected

A spring is first stretched : A spring is first stretched 2.0 cm from its unstressed length. It is then stretched an additional 1.7 cm.How does the work required for the second stretch compare to the work required for the first stretch (give a ratio of second to first)?

Estimate how much work has been done on the hose : A firehose 17 m long is uncoiled bypulling the nozzle end horizontally along a frictionless surface atthe steady speed of 2.4 m/s. How much work has been done on the hose bythe applied force

User Account

All Pages