An ideal gas with 3 translational, 2 rotational and 2 vibrational degrees of freedom is at an initial temperature of 227 degrees celsius, initial pressure of 24 atm and occupies an initial volume of 1800 l. a) how many moles of molecules make up this gas?
b) the gas expands isothermally to a volume of 5400 l. what is the new pressure
c) how much work was done in the process?

Intro: a solid ball of radius rb has a uniform charge density ρ. part a: what is the magnitude of the electric field e(r) at a distance r> rb from the center of the ball? express your answer in terms of ρ, rb, r, and ϵ0. part b: what is the magnitude of the electric field e(r) at a distance r express your answer in terms of ρ, rb, r, and ϵ0. part c: let e(r) represent the electric field due to the charged ball throughout all of space. which of the following statements about the electric field are true? check all that apply. e(0) = 0 e(rb)=0 limr→∞e(r)=0 the maximum electric field occurs when r=0 the maximum electric field occurs when r=rb the maximum electric field occurs as r→∞.