A6.0 mev alpha particle beam of cross section 5 cm2 is completely stopped in an ionization chamber producing a saturation current of 0.08 na. what is the debroglie wavelength of the alpha particle? if the energy necessary to create an ion-electron pair is 33 ev/ip, calculate the fluence rate?

Arigid tank is divided into two equal parts by a partition. one part of the tank contains 3 kg of compressed liquid water at 400 kpa and 60°c while the other part is evacuated. the partition is now removed, and the water expands to fill the entire tank. determine the entropy change of water during this process, if the final pressure in the tank is 40 kpa. use steam tables.