Question

A container holds 0.031 moles of monatomic Argon (atomic mass 39.9) at a temperature of 0 °C and a volume of 376 cm? Constants: k = 1.38x10-2 J/K; R=8.31 J/mol-K; l u = 1.66x10-27 kg: 1 atm = 1.01x10 Pa Draw a diagram of this (a box with a random bunch of particles zooming around, labeled appropriately; remember that every variable you use in an equation needs to be defined on your diagram). a) Find the pressure of the gas. i) Convert the volume to m. ii) Convert the temperature to Kelvins. iii) Find the pressure in Pascals. (Remember: Write the equation, solve algebraically, plug in with units; answer in 3 sig figs, SI units, and a box.) b) Find the rms velocity of the gas in two ways. (Hint: PAY ATTENTION TO UNITS! Each method requires a unit conversion for the atomic mass.) 1) Use molar mass and R.

b. ii) Use particle mass and k.