5. For an inside process area (30,000 ft) and the temperature is 80F: a. Determine the recommended ventilation rate that will handle Class I liquids and gases. b. Determine the concentration of propane in the area as a function of time if at t=0, a 3/4- in propane line breaks (the propane main header is at 100 psig). c.describe what safety features should be added to this process area. 5. For an inside process area (30,000 ft) and the temperature is 80F: a. Determine the recommended ventilation rate that will handle Class I liquids and gases. b. Determine the concentration of propane in the area as a function of time if at t=0, a 3/4- in propane line breaks (the propane main header is at 100 psig). c.describe what safety features should be added to this process area