CO₂ at 30 degrees Celsius and a pressure of 2.5 bar are flowing through a rubber hose, wtih inside diamter 25 mm and a thickness of 2 mm. The coefficient of diffusion for CO2/rubber is 0.12 x 10^-9 m²/s and solubility of CO2 in rubber is 4.5 x 10^-2 kmol/m³*bar. Calculate loss per length. At what gas flow rate do you lose 1% of your total flow per 100 feet of length? Given this answer, is loss of gas an important issue?