5) Of the following gases, A) NH3 B) HCI will have the greatest rate of effusion at a given temperature. C) HBr D) Ar E) CH4 6) A sample of a gas originally at 25 C and 1.00 atm pressure in a 2.5 L container is subject to a pressure of 0.85 atm and a temperature of 15 C. The final volume of the gas is A) 2.8 B) 3.0 L. C) 2.1 D) 0.38 E) 2.6 7) The pressure of a sample of CH4 gas (6.022 g) in a 30.0 L vessel at 402 K is A) 2.42 B) 6.62 C) 22.4 D) 0.413 8) The molecular weight of a gas is A) 5.5 x 103 B) 4.6 x 102 atm. E) 12.4 g/mol if 3.5 g of the gas occupies 2.1 L at STP. C) 41 D) 37 E) 2.7 x 10-2 5) 6) 7) 8)