Problems i there is power plant for a 100-m height and 4-m diameter stack whose exit gas has a velocity of 30 m/s. the wind velocity is 5 m/s with the stability class of c. the pressure is 1 atm, and the stack and surrounding temperatures are 100°c and 20°c (373k and 293k), respectively. estimate plume rise using briggs equation. when gravity acceleration g is 9.8 m/s2 problems ii in problem i, a power plant emits 200 g/s of so2. estimate the ground-level concentration of so2 from this source at a distance 2km directly downwind when the stability class is c problems iii for the same situation of problem ii, calculate ground- level concentration 250m to the side of the plume centerline. m problems iv 최까학지2. 지점 what is maximum ground level concentration and where is it located downstream in problem ii ?