A 2.00-L tank, evacuated and empty, has a mass of 725.6 g. It is filled with butance gas ( C4H10) at 22 celsius to a pressure of 1.78 atm. What is the mass of the tank after it is filled?
Thanks!!
Ideal Gas Law ; Calculation of one variable
2006-10-19 4:37 pm
回答 (2)
2006-10-20 12:27 am
✔ 最佳答案
By Ideal Gas LawPV=nRT
(1.78)(2)=n(8.31)(273+22)
3.56=2451.45n
n=1.452X10^(-3)
mass gain
=(0.001452)(12X4+1X100
=0.0842
new mass
=0.7256+0.0842
=0.8098kg
=809.8g
2006-10-21 7:57 am
Use PV=nRT
But the unit used is not SI
the correct one should be
(1.78)(2) = n(0.08206)(273+22)
If use R = 8.314
the pressure should be in Pa, not atm
the volume should be in m3, not litre
But the unit used is not SI
the correct one should be
(1.78)(2) = n(0.08206)(273+22)
If use R = 8.314
the pressure should be in Pa, not atm
the volume should be in m3, not litre
收錄日期: 2021-04-25 16:24:20
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