A coal-fired power station has a stack of height 25m. The plant burns coal at a rate of 150 tons (1ton =1,000kg ) per day. The sulfur contents of the coal is 1.2% by mass. 1.Calculate the emission rate of sulfur dioxide (kg/s). 2. We can assume the concentration of the sulfur dioxide, expressed as kg/m3 is kg of sulfur dioxide per cubic meter of air after leaving the stack. Assume conditions of 100kPa pressure and 295K, find Q, the ppm value at the stack exit (mg sulfur dioxide/kg air). 3.The wind varies between vx=5 and vx=25mph. Use Matlab to calculate a region consisting of an inner and outer radius from ground level to 10m, so that outside this region, the sulfur dioxide concentrations do not exceed 2.5 parts per million (2.5mg sulfur dioxide per kg air). The dispersion coefficients Dy for horizontal and Dz for vertical dispersion is 0.5m2/s. The equation that describes the particle concentration as a function of height (z) and distance from the stack (x) is: C=4xDyDzQ(e(zz0)2/(4Dzx/vx)+e(z+z0)2/(4Dzx/vx))