In: Chemistry
1a. A sample of argon gas at a pressure of 909 mm Hg and a temperature of 23 °C, occupies a volume of 11.2 liters. If the gas is heated at constant pressure to a temperature of 58 °C, the volume of the gas sample will be_______L?
1b. A sample of methane gas at a pressure of 0.535 atm and a temperature of 231 °C, occupies a volume of 479 mL. If the gas is heated at constant pressure until its volume is 591 mL, the temperature of the gas sample will be_______°C?
1a.
pressure is constant
initial final
V1 = 11.2L V2 =
T1 = 23+273 = 296K T2 = 58+273 = 331K
V1/T1 = V2/T2
V2 = V1T2/T1
= 11.2*331/296 = 12.52L >>>>>answer
1b.presure is constant
initial final
V1 = 479ml V2 = 591ml
T1 = 231+273 = 504K T2 =
V1/T1 = V2/T2
T2 = V2T1/V1
= 591*504/479 = 621.84K
621.84-273 =348.840C >>>answer