and its absolute temperature is decreased by one-half. What is the final volume of the gas?
.. please help! i think you have to use stp? i dont know .. im so lost! please help! oh and i know the correct answer is .. 9.0 L
thanks in advance for any help!
2007-03-21 10:51:43 · 2 answers · asked by M 3 in Science & Mathematics ➔ Chemistry
Using the combined gas law: -
...P1V1T2 = P2V2T1
...760 x 6 x 136.5 = 253.3 x V2 x 273
...V2 = (760 x 6 x 136.5) ÷ (253.3 x 273)
...V2 = 622,440 ÷ 69150.9
...V2 = 9 Litres.
2007-03-21 11:35:50 · answer #1 · answered by Norrie 7 · 1⤊ 0⤋
If the pressure is reduced to 1/3, the volume will rise by a factor of 3, to 18 litres. Now, if the temperature is halved, it will contract to half of 18, ie 9 litres.
Use Boyle's Law, and then Charles' Law.
2007-03-21 11:26:25 · answer #2 · answered by Gervald F 7 · 0⤊ 0⤋