Please answer all questions and ASAP. They have been asked already on Chegg and I've received the incorrect answers. I've included the hints given after I had gotten them incorrect. I am still stuck on these ones. I only have one more chance to answer these questions so I would greatly appreciate your best efforts on solving these.

Just please answer as many as possible. I will give upvote. Thanks!

Incorrect Question 3 0/1 pts An exhaust gas stream contains 2,000 ppm of a gaseous pollutant and 10% water content at 200C and 1.0 atm. The gaseous pollutant concentration at standard conditions of temperature and pressure (i.e., 20C and 1 atm, respectively) is most nearly 1,239 ppm 3,229 ppm none of the listed answer 2,222 ppm 2,000 ppm Hint: Cppm = (v2/V+)x106 Incorrect Question 5 0/1 pts An exhaust gas stream contains 2,000 ppm of a gaseous pollutant and 10% water content at 200C and 1.0 atm. The standard mass concentration of the pollutant gas is ____ the corresponding actual mass concentration. equal to It cannot be determined from the available data. greater than less than Hint: Cmass,s= Cmass,a:(P3/P2)-(T2/T3) Incorrect 0/1 pts Question 6 Consider a flue gas with the following composition: N2=71%, CO2=11%, H20=10%, O2=8%. The temperature and pressure of the flue gas are 150C and 1 atm, respectively. The concentrations at the flue gas conditions are 20 ppm for HCI (MW=36.5). What is the actual mass concentration of HCl in the flue gas, in mg/m? 610 mg/m3 10 mg/m3 21 mg/m3 56.5 mg/m3 Hint: Cmass = Cppm *10-6x(P/RT)xMW Incorrect Question 8 0/1 pts A 600 MW coal-fired power plant has an overall thermal efficiency of 38%. It is burning coal that has a heating value of 12,000 Btu/lbm, ash content of 5%, sulfur content of 3.0%, and CO2 emission factor of 220 lbm/million Btu of heat input. What is the CO2 emission rate (tons/day)? 4885 tons/day 14200 tons/day 12900 tons/day 5835 tons/day Hint: The mass emission rate of CO2 can be calculated from the emission factor of 220 lbm/million Btu of heat input, and the total heat input. Incorrect 0/2 pts Question 9 For an SO2 emission rate of 22,000 lb/day and an exhaust gas flow rate of 2.0 million m3/hr (after the scrubber) measured at 150F and 1 atm pressure. What is the concentration of SO2 in the exhaust gases (ppm). 208 ppm 240 ppm 90 ppm It cannot be determined from the available data. Hint: First calculate Cmass, then Cppm=Cmass*106xRxT/(PxMW) Incorrect 0/2 pts Question 10 Consider a flue gas with the following composition: N2=71%, CO2=11%, H20=10%, 02=8%. The temperature and pressure of the flue gas are 150C and 1 atm, respectively. The flue gas flows out of a 2.0-m diameter stack at an average gas velocity of 18 m/s (at stack temperature and pressure). If the particulate concentration just meets the standard of 20 mg/dscm, corrected to 7% O2, what is the emission rate of particulate matter (mg/s)? 17 mg/s 610 mg/s 49 mg/s 320 mg/s Hint: Cdscm= Ccorr (21-Y)/(21-7) Ca = Cdscm: (P/PT3/T2/(1-YH20) Emission rate of particulate matter = Q. Ca