Calculate the root mean square velocity and kinetic energy of F2, Cl2 and Br2 at 298 K. Rank these three halogens with respect to their rate of effusion.

In a heat engine of 1000 j of heat enters the system and the piston does 500 j of work what is the final internal energy of the system if the inital energy was 2000 j we have to do all of these down here 1)write the equation 2)list out your know variables 3)plug the numbers into the equations 4)solve 5)write your solution statemtn that includes inital energuy and final energuy added