Energy req'd to compress a gas?

[ProtoBob]

Hi, I am trying to figure out how much energy would be required to compress air from 100ml
volume to 50ml, and also to 25ml volume...

A nudge in the right direction would be great!

Thank you! :)

 

[Vanadium 50]

Work is force times distance. Pressure is force per unit area. Pressure times volume of a gas is a constant. Enough of a nudge?

 

[ProtoBob]

So if the volume were initially 100 ml and the pressure is 14.7 psi then when compressed to 1/2 the volume, would the pressure then be 14.7 * 2 = 29.4 psi?

 

[Dadface]

The answer will liie between two extremesThe minimum energy is when the gas is compressed isothermally [infinitely slowly ]and the maximum when it is compressed adiabatically[infinitely rapidly].

 

[ProtoBob]

Could you explain isothermally and adiabatically?