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Question

gas laws

V=3,0 dm3
T=20C

what is the temperature if the volume is doubled

2.T=20C
V=4,0 dm3
V of piston above gas=500cm2

for how much does the piston move if gas is heated by 100 C.

Answer 1

Everything you need is wrapped up in

PV is proportional to nT

Pressure times volume is proportional to how many gas molecules times temperature.

So, all alse being equal, doubling the temp doubles the volume.

When you do the problem, don't forget to convert centigrade to absolute (Kelvin) temperature by adding 273. Then work out the ratios.

That should get you through the hw.