1.Determine the weight of HFC-227ea required to protect an enclosure 20 ft. wide, 40 ft. long, and 8 ft high, at an ambient temperature of 60^oF, and an elevation of 6,000 ft., using a 9% design concentration. (10 pts)

2.Determine the weight of IG-541 required to protect and enclosure 12 ft. wide, 12 ft. long and 10 ft. high, at an ambient temperature of 75^oF, and an elevation of -3,000 ft., using a 40% design concentration. (10 pts)