A small gas tank is filled with nitrogen gas at 25C and 4.5 atm. The lid...

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A small gas tank is filled with nitrogen gas at 25°C and 4.5 atm. The lid of the tank has a tiny leakage that causes the gas to effuse at a rate of 11.5 mL per hour. What is the rate of effusion in mL per hour if the tank is filled with helium gas at the same temperature and pressure? (A) 21.5 mL (B) 30.4 mL (C) 40.2 mL (D) 80.5 mL A small gas tank is filled with nitrogen gas at 25°C and 4.5 atm. The lid of the tank has a tiny leakage that causes the gas to effuse at a rate of 11.5 mL per hour. What is the rate of effusion in mL per hour if the tank is filled with helium gas at the same temperature and pressure? (A) 21.5 mL (B) 30.4 mL (C) 40.2 mL (D) 80.5 mL