Question

1. The volume of a gas is 250. mL when at 245 kPa of pressure. What will the volume be when the pressure if reduced to 80.0 kPa, assuming the temperature remains constant? A)766 mL B)144 mL C)44.4 mL D)6.19 mL

2. A balloon at 6.00 atm and 250. K has a volume of 15.0 L. What happens to the volume of the balloon when it drops to sea level where the pressure is 1 atm, but the temperature is 295 K?

A)106 L

B)24.8 L

C) 295 L

D) 76.3 L

Answer 1

1. Initial volume of gas (vi) = 250 mL Initial pressure of gas (P.) = 245 kPa Final pressure of gas (P2) = 80.0 kPa Final volume of gas (N2) = ? Temperature (T) = Const . livi = P₂ V2 V, - Pixi 245 kPax 250 mL 80 kPa - 765.625 mL & Final volume of gas = 765.625 mL Ans: a) 766 mL Initial Pressure of balloon (Pi) = 6.0 atm Initial volume of balloon (V.) = 15.02 Initial temperature of balloon (Ti) = 250k final Pressure of balloon (P2) - 1 atm final temperature of balloon (T) = 295k Final volume of balloon (V2) = ? Pivo P2 V2 T Tz in i V2 2 1/2 x 72 x 15.02 batm & 2950 x I atm 250K a 106.2 L .. is 106.2L . Final volume of balloon Ans: A) 1064