how long will it take to achieve the same 99% killing rate for the virus? (assuming other conditions unchanged)

Which of the following statement is incorrect for the effect of SO2 on the environment? a. Sulfur dioxide can result in particulate matters (PMs) formation b. Sulfur dioxide is a greenhouse gas c. Sulfur dioxide can cause acid rain which seriously affects ecosystems d. Sulfur dioxide can negatively impact air quality

Advection, diffusion, and reaction in a channel Approximately 50 m3 of an agricultural pesticide with an initial concentration of 1.6 × 105 mol/m3 have been spilled into a stream following a train derailment. You have been called in to predict the aqueous concentrations of this pesticide at various points along the stream, and the mass that will be delivered to a lake with critical habitat 70 km downstream. You look up the main component of the pesticide and see that it degrades in water (due to hydrolysis reaction) with a half-life of 1.9 h. The discharge rate of the stream is 75,000 L/min. It has an average depth of 0.3 m and an average width of 1.2 m. a. Calculate the maximum concentration (in mol/L) of the pesticide that will be observed at a town 10 km downstream and at the point where the stream reaches the lake, 70 km downstream. Assume a sheer velocity of 0.40 m/s. b. Plot the concentration of this pesticide entering the town and the lake with time. Care should be taken when…