temperalule juulu
S:
15.
eis
sample of a gas occupies 10L at 240°C under a pressure
of 80 kPa. At what temperature would the gas occupy 20L,
if we increase the pressure to 100.0 kPa ? (1009.5°C]
16. A gas sample occupies 55 mL at 182º C and 3 atm. What
will be the volume of the sample at S.T.P. ?
[99 mL]
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Explanation:
15.
P1V1/T1 = P2V2/T2
P1 = 80 kPa ; P2 = 100 kPa
V1 = 10 L ; V2 = 20 L
T1 = 240 + 273 = 513 K , T2 = ?
T2 = (P2V2/ P1V1) x T1
T2 = (100 kPa x 20 L/80 kPa x 10 L) x 513 K
T2 = 1282.5 K - 273 K = 1009.5 deg C
16.
P1V1/T1 = P2V2/T2
P1 = 3 atm; P2 = 1 atm (STP)
V1 = 55 mL ; V2 = ?
T1 = 182 + 273 = 455 K , T2 = 273 K ( STP)
V2 = P1V1/ T1. x T2/P2
V2 = (3 atm x 55 mL / 455 K) x 273 K / 1 atm
V2 = 99 mL
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