Which gas bottle

[Garyandlou]

Hi
Sorry for the daft question but I've seen both used. Do you use the blue bottle or the red one in the campervan or does it not matter

 

[the1andonly]

For those home schooling

Pressure in the vessel is directly related to outside temperature.

Ideal gas law Boyles law P1V1/T1 = P2V2/T2
In our case V volume of cylinder is constant but gas vol changes as liquid is used up.

as it travels from the vessel, it absorbs the surrounding temperature. Hence when you have a high discharge, the vessel tends to ice up, up to the regulator.

most jiggly ones break free (evaporate) thus lowering the mean temperature of the remaining liquid.

Evaporation of liquids is generally an endothermic reaction (requires energy) either from an external source eg boiling a kettle or by reducing the liquid temperature and surrounding container pipe work etc. (eg our gas bottle) This energy required is the "latent heat of evaporation"
The process of going from a solid directly to a gas (no liquid phase) is known as sublimation
now go amaze your 8 year olds.