A level Physics - Thermal Physics Question
I need help with the final part of Q5. I got the correct answer using pV=nRT which gave me 0.167kg, I just subbed in the new pressure and new temperature and kept the volume the same.
There is another method where you use pV/T = Constant, where you find the new Volume which I found to be 6.72 cubic metres, but I have no idea what you do with this to find the final answer. I need to understand this method as well so please help me figure this out.
I've linked two pictures, one with the question and one with my two pieces of working so that you understand what I mean.
https://drive.google.com/file/d/1TB5gg6bGsPA7EzWGosp7RnhkZwkQc0FB/view?usp=sharing
https://drive.google.com/file/d/1XFyKzMUlwQYawnwXnfDPvJzaVMwVfHOL/view?usp=sharing
There is another method where you use pV/T = Constant, where you find the new Volume which I found to be 6.72 cubic metres, but I have no idea what you do with this to find the final answer. I need to understand this method as well so please help me figure this out.
I've linked two pictures, one with the question and one with my two pieces of working so that you understand what I mean.
https://drive.google.com/file/d/1TB5gg6bGsPA7EzWGosp7RnhkZwkQc0FB/view?usp=sharing
https://drive.google.com/file/d/1XFyKzMUlwQYawnwXnfDPvJzaVMwVfHOL/view?usp=sharing
I'd do it the pV = nRT way.
If you really want to do the PV/T method ....
new volume is 6.7 m3, of which 0.2 m3 is still in the cylinder, so the mass left in cylinder is 0.2 / 6.7 x original mass in cylinder
(or something like that!)
If you really want to do the PV/T method ....
new volume is 6.7 m3, of which 0.2 m3 is still in the cylinder, so the mass left in cylinder is 0.2 / 6.7 x original mass in cylinder
(or something like that!)
Original post by old_teach
I'd do it the pV = nRT way.
If you really want to do the PV/T method ....
new volume is 6.7 m3, of which 0.2 m3 is still in the cylinder, so the mass left in cylinder is 0.2 / 6.7 x original mass in cylinder
(or something like that!)
If you really want to do the PV/T method ....
new volume is 6.7 m3, of which 0.2 m3 is still in the cylinder, so the mass left in cylinder is 0.2 / 6.7 x original mass in cylinder
(or something like that!)
Okayy, its just a ratio makes sense now, thank you!!!
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