A sample of argon gas at 309 K and 2.34 atm occupies a volume of 3.80 L. If the gas is allowed to expand to a larger volume , while at the same time it is heated to a higher temperature, the final gas pressure could be higher or lower than 2.34 atm depending on the final volume and temperature. will be lower than 2.34 atm. will be higher than 2.34 atm. Solution use ideal gas equation P1V1/T1 = P2V2/T2 first calculate P1V1/T1 value 2.34 atm x 3.80 L / 309K = 0.0287 L atm /K if the volume increases pressure will decrease if temperature increases pressure will increase so answer will be could be higher or lower than 2.34 atm depending on the final volume and temperature .

1. A sample of argon gas at 309 K and 2.34 atm occupies a volume of 3.80 L. If the gas is allowed
to expand to a larger volume , while at the same time it is heated to a higher temperature, the
final gas pressure
could be higher or lower than 2.34 atm depending on the final volume and temperature.
will be lower than 2.34 atm.
will be higher than 2.34 atm.
Solution
use ideal gas equation
P1V1/T1 = P2V2/T2
first calculate
P1V1/T1 value
2.34 atm x 3.80 L / 309K
= 0.0287 L atm /K
if the volume increases pressure will decrease
if temperature increases pressure will increase
so answer will be
could be higher or lower than 2.34 atm depending on the final volume and temperature